List of King of Mask Singer episodes (2021)

This is a list of episodes of the South Korean variety-music show King of Mask Singer in 2021. The show airs on MBC as part of their Sunday Night lineup. Due to the COVID-19 pandemic, the show would be recorded without any audience in the episodes, and the matches' results would be decided by the celebrity panelists. The names listed below are in performance order.

  – Contestant is instantly eliminated by the live audience and judging panel

  – After being eliminated, contestant performs a prepared song for the next round and takes off their mask during the instrumental break

  – After being eliminated and revealing their identity, contestant has another special performance.

  – Contestant advances to the next round.

  – Contestant becomes the challenger.

  – Mask King.

List of King of Mask Singer episodes
No. of episodes	50
Release
Original network	MBC
Original release	January 3 (2021-01-03) – December 26, 2021 (2021-12-26)
Season chronology
List of episodes

Episodes

144th Generation Mask King (cont.)

• Contestants: Elly (Weki Meki), Jeong Minseong (La Poem), Chan (Victon), Outsider, Nam Hyun-hee, Shin Hyun-woo (Sohodae [ko]), Park Nam-jung [ko], Jung Dong-nam [ko]

Episode 288

Episode 288 was broadcast on January 3, 2021.^[1][2][3]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	2021 Cheer Up, Ox!	Jeong Minseong of La Poem	Memory Loss (기억상실)	Gummy	11
	Miracles in December	Chan of Victon	Try (노력)	Park Won [ko]	10
Pair 2	Countdown	Shin Hyun-woo of Sohodae	To You (그대에게)	Infinite Track [ko]	3
	The Twelfth Brother	Park Nam-jung	I Loved You (사랑했어요)	Kim Hyun-sik	18
Special	Countdown	Shin Hyun-woo of Sohodae	Irreversible Love (돌이킬 수 없는 사랑)	Sohodae [ko]	—
Round 3
Finalists	2021 Cheer Up, Ox!	Jeong Minseong of La Poem	Old Song (오래된 노래)	Kim Dong-ryul	15
	The Twelfth Brother	Park Nam-jung	D.D.D (디.디.디.)	Kim Hye-rim [ko]	6
Special	Twelve Zodiac Signs		Missing You (널 그리며), Emergency Landing of Love (사랑의 불시착), Days with Rain (비에스친 날들)	Park Nam-jung [ko]	—
Final
Battle	2021 Cheer Up, Ox!	Jung Min-sung of La Poem	Previous three songs used as voting standard		5
	Buttumak Cat	Yang Yo-seob of Highlight	Forever and Ever (영원히 영원히)	Jaurim	16

145th Generation Mask King

• Contestants: Yoo Seung-beom [ko], Yoon Taek [ko], Lee Jin-ho [ko], Jae-gyun Hwang, Wuno, Yubin, Lee Young-hyun [ko] (Big Mama), Suyun (singer) [ko] (Rocket Punch)

Episodes 289 – 290

Episode 289

Episode 289 was broadcast on January 10, 2021. This marks the beginning of the Hundred-forty-fifth Generation.^[4][5][6]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	The Nature Man	Yoo Seung-beom	Once Again This Night (이 밤을 다시 한 번)	Jo Ha-moon [ko]	14
	The City Man	Yoon Taek			7
2nd Song	The City Man	Yoon Taek	Cheap Coffee (싸구려 커피)	Chang Kiha	—
Pair 2	Won Bin	Lee Jin-ho	Memories Resemble Love (추억은 사랑을 닮아)	Park Hyo-shin	11
	Mr. Bean	Jae-gyun Hwang			10
2nd Song	Mr. Bean	Jae-gyun Hwang	Around Thirty (서른 즈음에)	Kim Kwang-seok	—
Pair 3	Winter Rain	₩uNo	Phone Number (전화번호)	Jinusean	6
	The Flower of Snow	Yubin			15
2nd Song	Winter Rain	₩uNo	? (Question Mark) (? (물음표))	Primary ft. Choiza ft. Zion.T	—
Pair 4	Treasure Chest	Lee Young-hyun of Big Mama	With a Heart that Should Forget (잊어야 한다는 마음으로)	Kim Kwang-seok	17
	Jukebox	Suyun of Rocket Punch			4
2nd Song	Jukebox	Suyun of Rocket Punch	Playing with Fire (불장난)	Blackpink	—

Episode 290

Episode 290 was broadcast on January 17, 2021.^[7][8][9]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	The Nature Man	Yoo Seung-beom	It is Love (사랑이야)	Song Chang-sik	17
	Won Bin	Lee Jin-ho	Don't You Know? (모르시나요)	Davichi	4
Pair 2	The Flower of Snow	Yubin	Move	Taemin	3
	Treasure Chest	Lee Young-hyun of Big Mama	A Night Like Tonight (오늘 같은 밤이면)	Park Jeong-woon [ko]	18
Round 3
Finalists	The Nature Man	Yoo Seung-beom	Yeongil Bay's Friend (영일만 친구)	Choi Baek-ho [ko]	3
	Treasure Chest	Lee Young-hyun of Big Mama	My Way	Lee Soo	18
Special	The Nature Man	Yoo Seung-beom	Jealousy (질투)	Yoo Seung-beom	—
Final
Battle	Treasure Chest	Lee Young-hyun of Big Mama	Previous three songs used as voting standard		15
	Buttumak Cat	Yang Yo-seob of Highlight	The First Snow (첫 눈)	Jung Joon-il [ko]	6

146th Generation Mask King

• Contestants: Park Si-hwan, Go Young-yeol [ko] (Second Moon/RabidAnce), Jaejae, Lee Ae-ran [ko], Park Seon-woo [ko], Son Ah-seop, Yves (singer) (Loona), Kim Ki-bum

Episodes 291 – 292

Episode 291

Episode 291 was broadcast on January 24, 2021. This marks the beginning of the Hundred-forty-sixth Generation.^[10][11][12]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Staying Home	Park Si-hwan	Stained (물들어)	BMK	17
	Bangkok	Go Young-yeol of Second Moon/RabidAnce			4
2nd Song	Bangkok	Go Young-yeol of Second Moon/RabidAnce	Tiger is Coming (범 내려온다)	LeeNalChi [ko]	—
Pair 2	Menbosha	Jaejae	A Cheeky Man (얄미운 사람)	Kim Ji-ae [ko]	4
	Sha Sha Sha	Lee Ae-ran			17
2nd Song	Menbosha	Jaejae	Heartbreaker	G-Dragon	—
Pair 3	Frozen	Park Seon-woo	Thorn (가시)	Buzz	20
	DDaeng	Son Ah-seop			1
2nd Song	DDaeng	Son Ah-seop	One Love (하나의 사랑)	Park Sang-min	—
Pair 4	Yuja Tea	Yves of Loona	Departure from a Country (출국)	Hareem [ko]	17
	Balocha	Kim Ki-bum			4
2nd Song	Balocha	Kim Ki-bum	Bravo My Life	Bom Yeoreum Gaeul Kyeoul	—

Episode 292

Episode 292 was broadcast on January 31, 2021.^[13][14][15]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Staying Home	Park Si-hwan	Invisible Love (보이지 않는 사랑)	Shin Seung-hun	16
	Sha Sha Sha	Lee Ae-ran	Daejeon Blues (대전 부르스)	Ahn Jeong-ae	5
Special	Sha Sha Sha		Life of a Century (백세인생)	Lee Ae-ran	—
Pair 2	Frozen	Park Seon-woo	In the Rain (빗속에서)	Lee Moon-sae	16
	Yuja Tea	Yves of Loona	Tomorrow (내일 할 일)	Yoon Jong-shin	5
Round 3
Finalists	Staying Home	Park Si-hwan	You to Me Again (그대 내게 다시)	Byun Jin-sub	18
	Frozen	Park Seon-woo	Addicted Love (중독된 사랑)	Jo Jang-hyuk [ko]	3
Final
Battle	Staying Home	Park Si-hwan	Previous three songs used as voting standard		12
	Treasure Chest	Lee Young-hyun of Big Mama	Secret (비밀)	Boohwal	9

147th Generation Mask King

• Contestants: Han Hee-jun, Kim Na-young, Lee Eun-gyeol, Kim Shin-eui [ko] (Monni), Kim Yong-im [ko], Ahn Sung-joon (trot singer) [ko], Lee Joo-hyuk (singer) [ko] (Gift [ko]), Punch

Episodes 293 – 294

Episode 293

Episode 293 was broadcast on February 7, 2021. This marks the beginning of the Hundred-forty-seventh Generation.^[16][17][18]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Brother	Han Hee-jun	It's Gonna Be Rolling	Lee So-ra	6
	Brother's Wife	Kim Na-young			15
2nd Song	Brother	Han Hee-jun	Hug Me (안아줘)	Jung Joon-il [ko]	—
Pair 2	Postcard	Lee Eun-gyeol	People All Change (사람들은 모두 변하나 봐)	Bom Yeoreum Gaeul Kyeoul	2
	Yeopjeon	Kim Shin-eui of Monni			19
2nd Song	Postcard	Lee Eun-gyeol	Start Over (시작)	Gaho	—
Pair 3	Phrase Plate	Kim Yong-im	Where Are You (당신은 어디 있나요)	Yang Soo-kyung [ko]	13
	Go Big or Go Home	Ahn Sung-joon			8
2nd Song	Go Big or Go Home	Ahn Sung-joon	It's Art (예술이야)	Psy	—
Pair 4	Barcode	Lee Joo-hyuk of Gift	Going Home	Kim Yoon-ah	14
	QR Code	Punch			7
2nd Song	QR Code	Punch	Beautiful Goodbye (사월이 지나면 우리 헤어져요)	Chen	—

Episode 294

Episode 294 was broadcast on February 14, 2021.^[19][20][21]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Brother's Wife	Kim Na-young	Break Away	Big Mama	8
	Yeopjeon	Kim Shin-eui of Monni	Stay	Nell	13
Pair 2	Phrase Plate	Kim Yong-im	Loveletter (여정)	Wax	6
	Barcode	Lee Joo-hyuk of Gift	Do You Want to Walk with Me (같이 걸을까)	Lee Juck	15
Round 3
Finalists	Yeopjeon	Kim Shin-eui of Monni	After a Breakup (널 보낸 후에)	Choi Jae-hoon [ko]	10
	Barcode	Lee Joo-hyuk of Gift	I Want to Fall in Love (사랑에 빠지고 싶다)	Johan Kim	11
Final
Battle	Barcode	Lee Joo-hyuk of Gift	Previous three songs used as voting standard		19
	Staying Home	Park Si-hwan	12:30 (12시 30분)	Beast	2

148th Generation Mask King

• Contestants: Song Joon-geun [ko], Jiseon (singer) [ko] (Loveholics), Taeil (Block B), Shinsadong Tiger, Minnie ((G)I-dle), Nadeul (singer) [ko] (Weather Forecast [ko]), New (South Korean singer) [ko] (The Boyz), Na Yoon-kwon [ko]

Episodes 295 – 296

Episode 295

Episode 295 was broadcast on February 21, 2021. This marks the beginning of the Hundred-forty-eighth Generation.^[22][23]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	A-type Man	Song Joon-geun	My Heart Will Be with You (너를 향한 마음)	Lee Seung-hwan	4
	B-type Woman	Jiseon of Loveholics			17
2nd Song	A-type Man	Song Joon-geun	Applause (갈채)	Choi Yong-joon [ko]	—
Pair 2	Penthouse	Taeil of Block B	Fiction	Beast	17
	Vinyl House	Shinsadong Tiger			4
2nd Song	Vinyl House	Shinsadong Tiger	Goodbye for a Moment (잠시만 안녕)	MC the Max	—
Pair 3	Blood Cockles	Minnie of (G)I-dle	Snow (눈)	Zion.T	15
	Clam Manila	Nadeul of Weather Forecast			6
2nd Song	Clam Manila	Nadeul of Weather Forecast	Oh! What a Shiny Night (밤이 깊었네)	Crying Nut	—
Special	Clam Manila		I Like You (좋아 좋아)	Weather Forecast [ko]	—
Pair 4	Snowman	New of The Boyz	Doll (인형)	Lee Ji-hoon	6
	Snowflake	Na Yoon-kwon			15
2nd Song	Snowman	New of The Boyz	Eraser (지우개)	Ali	—

Episode 296

Episode 296 was broadcast on February 28, 2021.^[24][25][26]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	B-type Woman	Jiseon of Loveholics	If (만약에)	Taeyeon	9
	Penthouse	Taeil of Block B	Hui Jae (희재)	Sung Si-kyung	12
Special	B-type Woman	Jiseon of Loveholics	Doll's Dream (인형의 꿈) & Loveholic	Loveholics	—
Pair 2	Blood Cockles	Minnie of (G)I-dle	D (Half Moon)	Dean	5
	Snowflake	Na Yoon-kwon	The Fool (이 바보야)	Jung Seung-hwan	16
Round 3
Finalists	Penthouse	Taeil of Block B	Flower Way (꽃길)	Kim Se-jeong	3
	Snowflake	Na Yoon-kwon	Alone in Love (혼자만의 사랑)	Kim Gun-mo	18
Final
Battle	Snowflake	Na Yoon-kwon	Previous three songs used as voting standard		10
	Barcode	Lee Joo-hyuk of Gift	Things We Took for Granted (당연한 것들)	Lee Juck	11

149th Generation Mask King

• Contestants: Kim Chae-won (Iz*One), Kwon Jin-ah, Kim Boa (Keembo) [ko] (Keembo (group) [ko]), Kim Bo-kyung [ko], Park Sang-min, Lee Man-ki, Choi Jung-yoon, Kim Jun-ho

Episodes 297 – 298

Episode 297

Episode 297 was broadcast on March 7, 2021. This marks the beginning of the Hundred-forty-ninth Generation.^[27][28][29]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Formosan Deer	Kim Chae-won of Iz*One	No.1	BoA	8
	Ribeye Steak	Kwon Jin-ah			13
2nd Song	Formosan Deer	Kim Chae-won of Iz*One	I'm Not Alone (혼자가 아닌 나)	Seo Young-eun [ko]	—
Pair 2	Mugwort	Kim Boa of Keembo	Don't Touch Me	Refund Sisters	11
	Garlic	Kim Bo-kyung			10
2nd Song	Garlic	Kim Bo-kyung	A Flying Butterfly (나는 나비)	YB	—
Pair 3	Concert	Park Sang-min	I'm Yours (애모)	Kim Soo-hee	16
	An Alpine Club	Lee Man-gi			5
2nd Song	An Alpine Club	Lee Man-gi	My Heart Aches (가슴 아프게)	Nam Jin	—
Pair 4	Love is Coming Back	Choi Jung-yoon	An Essay of Memory (기억의 습작)	Exhibition [ko]	9
	Do I Look Like a King?	Kim Jun-ho			12
2nd Song	Love is Returning	Choi Jung-yoon	Aloha (아로하)	Cool	—

Episode 298

Episode 298 was broadcast on March 14, 2021.^[30][31][32]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Ribeye Steak	Kwon Jin-ah	As Time Goes By (시간이 흐른 뒤)	T	7
	Mugwort	Kim Boa of Keembo	Nunu Nana (눈누난나)	Jessi	14
Pair 2	Concert	Park Sang-min	Incurable Disease (난치병)	Hareem [ko]	15
	Do I Look Like a King?	Kim Jun-ho	After the Love Has Gone (사랑한 후에)	Jeon In-kwon	6
Round 3
Finalists	Mugwort	Kim Boa of Keembo	Sorry (미안해요)	Kim Gun-mo	13
	Concert	Park Sang-min	Lifetime (일생을)	Kim Hyun-chul [ko]	8
Final
Battle	Mugwort	Kim Boa of Keembo	Previous three songs used as voting standard		5
	Barcode	Lee Joo-hyuk of Gift	Ice Fortress (얼음요새)	Dear Cloud [ko]	16

150th Generation Mask King

• Contestants: Woo Soon-sil [ko], Do Sang-woo, Jung Seon-ah [ko], DJ Tukutz (Epik High), Yoo Ji-na [ko], Jeon Tae-poong [ko], Hong Young-joo, Kim Hyun-jung

Episodes 299 – 300

Episode 299

Episode 299 was broadcast on March 21, 2021. This marks the beginning of the Hundred-fiftieth Generation.^[33][34][35]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Yellow	Woo Soon-sil	I'm Happy (난 행복해)	Lee So-ra	17
	Grey	Do Sang-woo			4
2nd Song	Grey	Do Sang-woo	It's Not Love If It Hurts Too Much (너무 아픈 사랑은 사랑이 아니었음을)	Kim Kwang-seok	—
Pair 2	Baby Goat	Jung Seon-ah	Never Ending Story	Boohwal	18
	Baby Bear	DJ Tukutz of Epik High			3
2nd Song	Baby Bear	DJ Tukutz of Epik High	An Ordinary Day (보통날)	g.o.d	—
Pair 3	Good Day	Yoo Ji-na	Train Heading for South (남행열차)	Kim Soo-hee	16
	Oh, My!	Jeon Tae-poong			5
2nd Song	Oh, My!	Jeon Tae-poong	To the Fool ... From the Fool (바보에게... 바보가)	Park Myung-soo	—
Pair 4	100 Days of Meeting	Hong Young-joo	Romantic Cat (낭만고양이)	Cherry Filter	5
	The First Day from Today	Kim Hyun-jung			16
2nd Song	100 Days of Meeting	Hong Young-joo	Like an Indian Doll (인디언 인형처럼)	Na-mi	—

Episode 300

Episode 300 was broadcast on March 28, 2021.^[36][37][38]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Yellow	Woo Soon-sil	Facing the Desolate Love (사랑 그 쓸쓸함에 대하여)	Yang Hee-eun	10
	Baby Goat	Jung Seon-ah	Heaven	Kim Hyun-sung [ko]	11
Special	Yellow	Woo Soon-sil	The Lost Umbrella (잃어버린 우산)	Woo Soon-sil	—
Pair 2	Good Day	Yoo Ji-na	First Express (첫차)	Seoul Sisters	7
	The First Day from Today	Kim Hyun-jung	People Who Make Me Sad (나를 슬프게 하는 사람들)	Kim Kyung-ho	14
Round 3
Finalists	Baby Goat	Jung Seon-ah	Memory of the Wind (바람기억)	Naul	16
	Day 1 from Today	Kim Hyun-jung	I Have a Lover (애인 있어요)	Lee Eun-mi	5
Special	The First Day from Today		Breakup with Her (그녀와의 이별) & Bruise (멍)	Kim Hyun-jung	—
Final
Battle	Baby Goat	Jung Seon-ah	Previous three songs used as voting standard		14
	Barcode	Lee Joo-hyuk of Gift	Happy Together	Park Hyo-shin	7

151st Generation Mask King

• Contestants: Han Sang-il [ko] (Noise [ko]), Juvie Train (Buga Kingz [ko]), Go Yoo-jin [ko] (Flower), Do Kyung-wan [ko], Lee Eun-ji [ko], Kim Hae-joon [ko], Park Seon-joo [ko], Lee Seung-yeon

Episodes 301 – 302

Episode 301

Episode 301 was broadcast on April 4, 2021. This marks the beginning of the Hundred-fifty-first Generation.^[39][40][41]

Order	Stage Name	Real Name	Song	Original artist	Vote
Opening	Music Captain of Our Local	Ha Hyun-woo of Guckkasten	Lazenca, Save Us	N.EX.T	—
Round 1
Pair 1	A Musical Representative	Han Sang-il of Noise	One More Step (한 걸음 더)	Yoon Sang	5
	A Music Register	Juvie Train of Buga Kingz			16
2nd Song	A Musical Representative	Han Sang-il of Noise	It's Been a Long Time (한동안 뜸했었지)	Love and Peace [ko]	—
Special	A Musical Representative		What I Wanted from You (너에게 원한건)	Noise [ko]	—
Pair 2	Yoon Sang	Go Yoo-jin of Flower	Beautiful Restriction (아름다운 구속)	Kim Jong-seo	19
	Yoo Young-seok	Do Kyung-wan			2
2nd Song	Yoo Young-seok	Do Kyung-wan	Every Moment of You (너의 모든 순간)	Sung Si-kyung	—
Pair 3	Mask Pack	Lee Eun-ji	Love Day	Yang Yo-seob and Jung Eun-ji	17
	Six Pack	Kim Hae-joon			4
2nd Song	Six Pack	Kim Hae-joon	Should I Say I Love You Again? (다시 사랑한다 말할까)	Kim Dong-ryul	—
Pair 4	Ugly 6-years-old	Park Seon-joo	Sad Fate (슬픈인연)	Na-mi	19
	Life Starts at 60	Lee Seung-yeon			2
2nd Song	Life Starts at 60	Lee Seung-yeon	When Love Passes (사랑이 지나가면)	Lee Moon-sae	—

Episode 302

Episode 302 was broadcast on April 11, 2021.^[42][43][44]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	A Music Register	Juvie Train of Buga Kingz	Forgive Me (나를 용서해)	Keep Six [ko]	5
	Yoon Sang	Go Yoo-jin of Flower	Making a New Ending for This Story (이 소설의 끝을 다시 써보려 해)	Han Dong-geun	16
Pair 2	Mask Pack	Lee Eun-ji	I'm Feeling Good Day (예감 좋은 날)	Rumble Fish	1
	Ugly 6-years-old	Park Seon-joo	Wind is Blowing (바람이 분다)	Lee So-ra	20
Round 3
Finalists	Yoon Sang	Go Yoo-jin of Flower	To Her Love (그녀의 연인에게)	K2 [ko]	8
	Ugly 6-years-old	Park Seon-joo	Don't Leave by My Side (내 곁에서 떠나가지 말아요)	The Light and Salt [ko]	13
Special	Yoon Sang	Go Yoo-jin of Flower	Endless	Flower	—
Final
Battle	Ugly 6-years-old	Park Seon-joo	Previous three songs used as voting standard		9
	Baby Goat	Jung Seon-ah	A World We'll Make (세상은)	Shin Hyo-beom [ko]	12

152nd Generation Mask King

• Contestants: Syuka [ko], Song Bong-joo [ko] (Jatanpung [ko]), Lee Jeong-kwon [ko], Park Sung-joon (A.R.T), Woo Yeon-yi [ko], Kim Jong-seok [ko], Noh Hee-ji [ko], Lee Joo-woo

Episodes 303 – 304

Episode 303

Episode 303 was broadcast on April 18, 2021. This marks the beginning of the Hundred-fifty-second Generation.^[45][46][47]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Financial Technology	Syuka	We Need our Love (우리의 사랑이 필요한거죠)	Byun Jin-sub	2
	At-Home Job	Song Bong-joo of Jatanpung			19
2nd Song	Financial Technology	Syuka	Under the Sky (하늘 아래서)	Kim Min-jong	—
Pair 2	Pizza & Beer	Lee Jeong-kwon	Dream (꿈)	Cho Yong-pil	17
	Soju & Samgyeopsal	Park Sung-joon of A.R.T			4
2nd Song	Soju & Samgyeopsal	Park Sung-joon of A.R.T	Hometown Station (고향역)	Na Hoon-a	—
Pair 3	First Love	Woo Yeon-yi	Desert Island (무인도)	Kim Choo-ja [ko]	18
	Last Love	Kim Jong-seok			3
2nd Song	Last Love	Kim Jong-seok	Hands of a Clock (시계바늘)	Shin Yoo [ko]	—
Pair 4	Cook	Noh Hee-ji	Star (별)	Youme [ko]	4
	Dark History	Lee Joo-woo			17
2nd Song	Cook	No Hee-ji	Flying Girl (비행소녀)	Magolpy [ko]	—

Episode 304

Episode 304 was broadcast on April 25, 2021.^[48][49][50]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	At-Home Job	Song Bong-joo of Jatanpung	Those Days (그날들)	Kim Kwang-seok	10
	Pizza & Beer	Lee Jeong-kwon	I Hate You (미워요)	Choi Jung-in	11
Special	At-Home Job	Song Bong-joo of Jatanpung	You're to Me And I'm to You (The Classic OST) (너에게 난, 나에게 넌)	Jatanpung [ko]	—
Pair 2	First Love	Woo Yeon-yi	Unready Farewell (준비 없는 이별)	Green Area [ko]	17
	Dark History	Lee Joo-woo	Goodbye (잘가요)	Jung Jae-wook [ko]	4
Round 3
Finalists	Pizza & Beer	Lee Jeong-kwon	From Mark	Ha Dong-kyun	16
	First Love	Woo Yeon-yi	I Won't Love (사랑 안 해)	Baek Ji-young	5
Special	First Love		Coincidence (우연히)	Woo Yeon-yi [ko]	—
Final
Battle	Pizza & Beer	Lee Jeong-kwon	Previous three songs used as voting standard		8
	Baby Goat	Jung Seon-ah	Rollin' (롤린)	Brave Girls	13
Special	Pizza & Beer	Lee Jeong-kwon	Like Those Powerful Salmons That Come Against the River (거꾸로 강을 거슬러 오르는저 힘찬 연어들처럼)	Kang San-ae	—

153rd Generation Mask King

• Contestants: Kang Seung-hee [ko] (Wink), Kang Joo-hee (singer, born 1983) [ko] (Wink), Gil Byung-min [ko] (Letteamor [ko]), Ryu Seung-min, Rocky (Astro), Yoon Hyun-sook [ko] (Zam [ko]), Youme [ko], Sohee (Elris)

Episodes 305 – 306

Episode 305

Episode 305 was broadcast on May 2, 2021. This marks the beginning of the Hundred-fifty-third Generation.^[51][52][53]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Diet	Kang Seung-hee of Wink	Only You Wouldn't Know (너만은 모르길)	As One	13
	Yo-Yo	Kang Joo-hee of Wink			8
2nd Song	Yo-Yo	Kang Joo-hee of Wink	Lying on the Sea (바다에 누워)	The Treble Clef [ko]	—
Pair 2	Dragon Palace Wedding Hall	Gil Byung-min of Letteamor	This Is the Moment (Korean version) (지금 이 순간)	Musical Jekyll and Hyde OST	17
	Mr. Octopus	Ryu Seung-min			4
2nd Song	Mr. Octopus	Ryu Seung-min	You Can Do It (넌 할 수 있어)	Kang San-ae	—
Pair 3	The Bad Son Cries	Rocky of Astro	All for You	Cool	15
	Good Son	Yoon Hyun-sook of Zam			6
2nd Song	Good Son	Yoon Hyun-sook of Zam	The Pierrot Laughs at Us (삐에로는 우릴 보고 웃지)	Kim Wan-sun	—
Pair 4	Emerald of May	Youme	One's Way Back (귀로)	Park Seon-joo [ko]	11
	Daisy of May	Sohee of Elris			10
2nd Song	Daisy of May	Sohee of Elris	Just in Love (꿈을 모아서)	S.E.S.	—

Episode 306

Episode 306 was broadcast on May 9, 2021.^[54][55]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Diet	Kang Seung-hee of Wink	Flower Garden (꽃밭에서)	Jung Hoon-hee [ko]	12
	Dragon Palace Wedding Hall	Gil Byung-min of Letteamor	Forever with You (그대와 영원히)	Lee Moon-sae	9
Pair 2	The Bad Son Cries	Rocky of Astro	Hold My Hand (The Greatest Love OST) (내 손을 잡아)	IU	5
	Emerald of May	Youme	Lost Child (미아)	Lena Park	16
Round 3
Finalists	Diet	Kang Seung-hee of Wink	Note of Youthfulness (젊음의 노트)	Yoo Mi-ri [ko]	4
	Emerald of May	Youme	Wild Flower (야생화)	Park Hyo-shin	17
Final
Battle	Emerald of May	Youme	Previous three songs used as voting standard		12
	Baby Goat	Jung Seon-ah	Higher	Ailee	9

154th Generation Mask King

• Contestants: Kim Eun-young [ko], Kang Ye-bin [ko], Mo Tae-bum, Bae Jin-young (CIX), Kim Do-hyun [ko], Lee Young-ji, Choi Byung-seo [ko], Jeon In-hyuk [ko] (Yada [ko])

Episodes 307 – 308

Episode 307

Episode 307 was broadcast on May 16, 2021. This marks the beginning of the Hundred-fifty-fourth Generation.^[56][57]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Puzzle	Kim Eun-young	If You're Gonna Be Like This (이럴거면)	Ivy	20
	Blocks	Kang Ye-bin			1
2nd Song	Blocks	Kang Ye-bin	Why Don't You Know (왜 모르니)	Byul	—
Pair 2	Champion	Mo Tae-bum	From January to June (1월부터 6월까지)	015B & Yoon Jong-shin	2
	Sesame Oil	Bae Jin-young of CIX			19
2nd Song	Champion	Mo Tae-bum	Marry Me (결혼해줘)	Im Chang-jung	—
Pair 3	I'm Telling You to Go!	Kim Do-hyun	Lonely	2NE1	5
	I'm Getting Off This Time	Lee Young-ji			16
2nd Song	I'm Telling You to Go!	Kim Do-hyun	MaMa	Bobby Kim	—
Pair 4	Hanrabong	Choi Byung-seo	The Woman Outside the Window (창밖의 여자)	Cho Yong-pil	9
	Ttabong	Jeon In-hyuk of Yada			12
2nd Song	Hanrabong	Choi Byung-seo	At Andong Station (안동역에서)	Jin Sung [ko]	—

Episode 308

Episode 308 was broadcast on May 23, 2021.^[58][59][60]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Puzzle	Kim Eun-young	Stop the Time (시간아 멈춰라)	Davichi	15
	Sesame Oil	Bae Jin-young of CIX	Don't Forget (잊어버리지 마)	Crush ft. Taeyeon	6
Pair 2	I'm Getting Off This Time	Lee Young-ji	After This Night (이 밤이 지나면)	Yim Jae-beom	3
	Ttabong	Jeon In-hyuk of Yada	Even Tear Drops in Your Eyes (그대 눈물까지도)	Two Two	18
Special	I'm Getting Off This Time	Lee Young-ji	I Am Lee Young Ji (나는 이영지)	Lee Young-ji	—
Round 3
Finalists	Puzzle	Kim Eun-young	Through the Night (밤편지)	IU	10
	Ttabong	Jeon In-hyuk of Yada	Although I Loved You (사랑했지만)	Kim Kwang-seok	11
Special	Puzzle	Kim Eun-young	Pit-A-Pat (The Greatest Love OST) (두근두근)	Sunny Hill	—
Final
Battle	Ttabong	Jeon In-hyuk of Yada	Previous three songs used as voting standard		1
	Emerald of May	Youme	Live a Long Long Time (그대가 그대를)	Lee Seung-hwan	20

155th Generation Mask King

• Contestants: Jang Hyun-chul [ko], Kim Sang-hyuk [ko] (Click-B), Kim Seol [ko], Jin Won [ko], Kim Dong-han (WEi), Dong Hyun-bae [ko], Lee Eun-ha [ko], Jang Yoon-jeong

Episodes 309 – 310

Episode 309

Episode 309 was broadcast on May 30, 2021. This marks the beginning of the Hundred-fifty-fifth Generation.^[61][62]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Happiness Does Not Come in Grades	Jang Hyun-chul	Like Rain, Like Music (비처럼 음악처럼)	Kim Hyun-sik	20
	You're a Student and I'm a Teacher!	Kim Sang-hyuk of Click-B			1
2nd Song	You're a Student and I'm a Teacher!	Kim Sang-hyuk of Click-B	After Breaking Up (헤어진 후에)	Y2K [ko]	—
Pair 2	Cinderella	Kim Seol	Good Day (좋은 날)	IU	7
	Mozzarella	Jin Won			14
2nd Song	Cinderella	Kim Seol	W.H.I.T.E	White [ko]	—
Pair 3	Beware of Dogs	Kim Dong-han of Wei	Only Look at Me (나만 바라봐)	Taeyang	17
	Be Careful of What you Say	Dong Hyun-bae			4
2nd Song	Be Careful of What you Say	Dong Hyun-bae	My Only Friend (나만의 친구)	Solid	—
Pair 4	Girl with Short Hair	Lee Eun-ha	Sparks (불티)	Jeon Young-rok [ko]	20
	Girl with Long Straight Hair	Jang Yoon-jeong			1
2nd Song	Girl with Long Straight Hair	Jang Yoon-jeong	Some Day (언젠가는)	Lee Tzsche	—

Episode 310

Episode 310 was broadcast on June 6, 2021.^[63][64]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Happiness Does Not Come in Grades	Jang Hyun-chul	Heeya (희야)	Boohwal	12
	Mozzarella	Jin Won	Please Find Her (그녀를 찾아주세요)	The Name [ko]	9
Pair 2	Beware of Dogs	Kim Dong-han of Wei	If We (이럴거면 헤어지지 말았어야지)	Park Won [ko]	3
	Girl with Short Hair	Lee Eun-ha	Change	Jo Jang-hyuk [ko]	18
Round 3
Finalists	Happiness Does Not Come in Grades	Jang Hyun-chul	Delilah (딜라일라)	Jo Young-nam	3
	Girl with Short Hair	Lee Eun-ha	Beautiful Rivers and Mountains (아름다운 강산)	Shin Jung-hyeon	18
Special	Happiness Does Not Come in Grades	Jang Hyun-chul	Walk to the Sky (걸어서 하늘까지)	Jang Hyun-chul [ko]	—
Final
Battle	Girl with Short Hair	Lee Eun-ha	Previous three songs used as voting standard		10
	Emerald of May	Youme	Come Back Home	2NE1	11
Special	Girl with Short Hair	Lee Eun-ha	You Let Me Go with a Smile (Don't Cry for Me) (미소를 띄우며 나를 보낸 그 모습처럼)	Lee Eun-ha [ko]	—

156th Generation Mask King

• Contestants: Sole (South Korean singer) [ko], Yoon Gi-won [ko], Monday (South Korean singer) [ko] (Weeekly), Nancy Lang, Yeo Esther [ko], Lee Gyu-seok [ko], Park Min-hye [ko] (Big Mama), Choi Byung-chul

Episodes 311 – 312

Episode 311

Episode 311 was broadcast on June 13, 2021. This marks the beginning of the Hundred-fifty-sixth Generation.^[65][66][67]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Shih Tzu	Sole	Love Two (사랑 Two)	Yoon Do-hyun	17
	Easy	Yoon Gi-won			4
2nd Song	Easy	Yoon Gi-won	Met Her 100m Away (그녀를 만나는 곳 100m 전)	Lee Sang-woo [ko]	—
Pair 2	Drawing Lots	Monday of Weeekly	Valenti	BoA	18
	Ladder Riding	Nancy Lang			3
2nd Song	Ladder Riding	Nancy Lang	3! 4!	Roo'ra	—
Pair 3	Parakeet Couple	Yeo Esther	Let's Go Travel (여행을 떠나요)	Cho Yong-pil	3
	Chicken Skin Couple	Lee Gyu-seok			18
2nd Song	Parakeet Couple	Yeo Esther	Secret Love (몰래한 사랑)	Kim Ji-ae [ko]	—
Pair 4	Sori-kkun	Park Min-hye of Big Mama	Gather My Tears (내 눈물 모아)	Seo Ji-won [ko]	19
	Lover	Choi Byung-chul			2
2nd Song	Lover	Choi Byung-chul	Your Shampoo Scent in the Flowers (흔들리는 꽃들 속에서 네 샴푸향이 느껴진거야)	Jang Beom-june	—

Episode 312

Episode 312 was broadcast on June 20, 2021.^[68][69]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Shih Tzu	Sole	Solo	Jennie	11
	Drawing Lots	Monday of Weeekly	How Can I Love the Heartbreak, You're the One I Love (어떻게 이별까지 사랑하겠어, 널 사랑하는 거지)	AKMU	10
Pair 2	Chicken Skin Couple	Lee Gyu-seok	Your Smile in My Memory (미소속에 비친 그대)	Shin Seung-hun	5
	Sori-kkun	Park Min-hye of Big Mama	Then Something (그런 일은)	Hwayobi	16
Special	Chicken Skin Couple	Lee Gyu-seok	Trains and Pine Trees (기차와 소나무)	Lee Gyu-seok [ko]	—
Round 3
Finalists	Shih Tzu	Sole	I'm in Love	Ra.D	4
	Sori-kkun	Park Min-hye of Big Mama	Heaven	Ailee	17
Final
Battle	Sori-kkun	Park Min-hye of Big Mama	Previous three songs used as voting standard		16
	Emerald of May	Youme	Don't Be Sad (슬픈 표정 하지 말아요)	Shin Hae-chul	5
Special	Emerald of May		Love Is Always Thirsty (사랑은 언제나 목마르다)	Youme [ko]	—

157th Generation Mask King

• Contestants: Choi Ye-na, KyoungSeo, Lee Ji-hoon, Lee Hoon, Lee Jae-young [ko], Oh Ji-heon [ko], Choi Jung-in, Yang Eun-ji [ko]

Episodes 313 – 314

Episode 313

Episode 313 was broadcast on June 27, 2021. This marks the beginning of the Hundred-fifty-seventh Generation.^[70][71]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	MBTI	Choi Ye-na	Can't Do (못해)	4Men ft. Mi (美)	6
	MSG	KyoungSeo			15
2nd Song	MBTI	Choi Ye-na	Why Don't You Know	Chungha ft. Nucksal	—
Pair 2	Descendant of the Sun	Lee Ji-hoon	Friends (친구)	Ahn Jae-wook	17
	Descendant of the Warrior	Lee Hoon			4
2nd Song	Descendant of the Warrior	Lee Hoon	Side Road (골목길)	Shinchon Blues [ko]	—
Pair 3	Flowers	Lee Jae-young	Aspirin (아스피린)	Girl (걸)	20
	Mushroom	Oh Ji-heon			1
2nd Song	Mushroom	Oh Ji-heon	Don't Leave Me (날 떠나지마)	Park Jin-young	—
Pair 4	Hwachae	Choi Jung-in	Resignation (체념)	Big Mama	18
	Cold Vegetables	Yang Eun-ji			3
2nd Song	Cold Vegetables	Yang Eun-ji	I Fell in Love (난 사랑에 빠졌죠)	Park Ji-yoon	—

Episode 314

Episode 314 was broadcast on July 4, 2021.^[72][73]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	MSG	KyoungSeo	If It Is You (Another Miss Oh OST) (너였다면)	Jung Seung-hwan	5
	Descendant of the Sun	Lee Ji-hoon	Be Forgotten (잊혀지다)	Jung Key ft. Yang Da-il	16
Pair 2	Flowers	Lee Jae-young	Hahaha Song (하하하쏭)	Jaurim	3
	Hwachae	Choi Jung-in	One-sided Love (짝사랑)	Gigs [ko]	18
Special	Blossom	Lee Jae-young	Temptation (유혹)	Lee Jae-young [ko]	—
Round 3
Finalists	Descendant of the Sun	Lee Ji-hoon	Don't Be Happy (행복하지 말아요)	MC the Max	6
	Hwachae	Choi Jung-in	Run With Me (도망가자)	Sunwoo Jung-a	15
Final
Battle	Hwachae	Choi Jung-in	Previous three songs used as voting standard		11
	Sori-kkun	Park Min-hye of Big Mama	My Story	Brown Eyed Soul	10

158th Generation Mask King

• Contestants: Jeong Se-woon, pH-1, Leeds [ko], Kim Young-man [ko], Kim Sa-eun (Musical actress) [ko], Lee Sang-byeok [ko], Yoari [ko], Hyebin [ko] (Momoland)

Episodes 315 – 316

Episode 315

Episode 315 was broadcast on July 11, 2021. This marks the beginning of the Hundred-fifty-eighth Generation.^[74][75][76]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Butter	Jeong Se-woon	Johnny (자니)	Primary ft. Dynamic Duo	21
	Center	pH-1			0
2nd Song	Center	PH-1	Expectation (기대)	Na Yoon-kwon [ko]	—
Pair 2	Balloon Flower	Leeds	My Heart Is Near You (내 마음 당신 곁으로)	Kim Jeong-soo [ko]	18
	X-Large	Kim Young-man			3
2nd Song	X-Large	Kim Young-man	It's You (그건 너)	Lee Jang-hee [ko]	—
Pair 3	Sea Otter	Kim Sa-eun	Label of Love (사랑의 이름표)	Hyun Chul [ko]	15
	Moon of the Sea	Lee Sang-byeok			6
2nd Song	Moon of the Sea	Lee Sang-byeok	Backdaljae with Tears (울고 넘는 박달재)	Park Jae-hong [ko]	—
Pair 4	Fire Staring	Yoari	Remove all Traces of Time (세월의 흔적 다 버리고)	015B & O.When [ko]	19
	Water Staring	Hyebin of Momoland			2
2nd Song	Water Staring	Hyebin of Momoland	Password 486 (비밀번호 486)	Younha	—

Episode 316

Episode 316 was broadcast on July 18, 2021.^[77][78][79]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Butter	Jeong Se-woon	Who Are You (Guardian: The Lonely and Great God OST)	Sam Kim	8
	Balloon Flower	Leeds	Don't Go Today (오늘은 가지마)	Im Se-joon [ko]	13
Pair 2	Sea Otter	Kim Sa-eun	Hey, Hey, Hey	Jaurim	3
	Fire Staring	Yoari	Feeling	Kim Sa-rang	18
Round 3
Finalists	Balloon Flower	Leeds	180 Degree (180도)	Ben	6
	Fire Staring	Yoari	A Person in My Dream (몽중인)	Lena Park	15
Special	Balloon Flower	Leeds	You Will Be Happy without Me (그댄 행복에 살텐데)	Leeds [ko]	—
Final
Battle	Fire Staring	Yoari	Previous three songs used as voting standard		8
	Hwachae	Choi Jung-in	My Ear's Candy (내귀에 캔디)	Baek Ji-young ft. Taecyeon	13

159th Generation Mask King

• Contestants: Yang Ji-eun [ko], Kim Jae-yup, Lee Min-hyuk (BtoB), Park Sul-nyeo [ko], Kim Yong-il [ko] (UP [ko]), Choi Eun-joo [ko], Dahyun (Rocket Punch), Bae Doo-hoon [ko] (Forestella)

Episodes 317 – 318

Episode 317

Episode 317 was broadcast on August 8, 2021. This marks the beginning of the Hundred-fifty-ninth Generation.^[80][81][82]

Order	Stage Name	Real Name	Song	Original artist	Vote
Opening	Honey & Baby	Louie & U Sung-eun	In Summer (여름 안에서)	Deux	—
Round 1
Pair 1	Nightmare	Yang Ji-eun	It's Me (나야 나)	Nam Jin	19
	Scissors	Kim Jae-yup			2
2nd Song	Scissors	Kim Jae-yup	Don't Tackle Me (태클을 걸지마)	Jin Sung [ko]	—
Pair 2	Pineapple	Minhyuk of BtoB	With You Everyday (매일 그대와)	Deulgukhwa [ko]	14
	Guava	Park Sul-nyeo			7
2nd Song	Guava	Park Sul-nyeo	Give Me Back My Youth (청춘을 돌려다오)	Shin Haeng-il	—
Pair 3	Run to You	Kim Yong-il of UP	Summer Story (여름 이야기)	DJ DOC	8
	3!4!	Choi Eun-joo			13
2nd Song	Run to You	Kim Yong-il of UP	Don't Say Goodbye (안녕이라고 말하지마)	Lee Seung-chul	—
Special	Run to You		The Sea (바다) & Ppuyo Ppuyo (뿌요뿌요)	UP [ko]	—
Pair 4	Girl that Stays at Home a Lot	Dahyun of Rocket Punch	Day by Day	Fly to the Sky	7
	Non-face-to-face Boyfriend	Bae Doo-hoon of Forestella			14
2nd Song	Girl that Stays at Home a Lot	Dahyun of Rocket Punch	I Don't Care	2NE1	—

Episode 318

Episode 318 was broadcast on August 15, 2021.^[83][84][85]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Nightmare	Yang Ji-eun	Trap of Youth (청춘의 덫)	Ji Soo [ko]	16
	Pineapple	Minhyuk of BtoB	Monster	Red Velvet – Irene & Seulgi	5
Pair 2	3!4!	Choi Eun-joo	Kiss Me	S♯arp	3
	Non-face-to-face Boyfriend	Bae Doo-hoon of Forestella	Timeless	SG Wannabe	18
Round 3
Finalists	Nightmare	Yang Ji-eun	Yeongam Arirang (영암 아리랑)	Ha Choon-hwa [ko]	10
	Non-face-to-face Boyfriend	Bae Doo-hoon of Forestella	Goodbye	Park Hyo-shin	11
Final
Battle	Non-face-to-face Boyfriend	Bae Doo-hoon of Forestella	Previous three songs used as voting standard		12
	Hwachae	Choi Jung-in	Fake Love	BTS	9

160th Generation Mask King

• Contestants: Bae Seung-min [ko] (Golden Child), Jay B (Got7), Kwak Beom [ko], Sungmin (Super Junior), Im Sung-eun [ko] (Young Turks Club), Christina Confalonieri, Johnny Lee [ko], Park Joon-geum

Episodes 319 – 320

Episode 319

Episode 319 was broadcast on August 22, 2021. This marks the beginning of the Hundred-sixtieth Generation.^[86][87][88]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	My House	Seungmin of Golden Child	Fall (어떻게 지내)	Crush	11
	Toad House	Jay B of Got7			10
2nd Song	Toad House	Jay B of Got7	We Should've Been Friends (친구라도 될걸 그랬어)	Gummy	—
Pair 2	Military Boots	Kwak Beom	Love	Jo Jang-hyuk [ko]	6
	Rubber Shoes	Sungmin of Super Junior			15
2nd Song	Military Boots	Kwak Beom	Be Mine (내꺼하자)	Infinite	—
Pair 3	Harmonica	Im Sung-eun of Young Turks Club	Americano (아메리카노)	10cm	15
	Recorder	Christina Confalonieri			6
2nd Song	Recorder	Christina Confalonieri	Eomeona! (어머나!)	Jang Yoon-jeong	—
Pair 4	Mung-bean Pancake Gentleman	Johnny Lee	I Loved You (사랑했어요)	Kim Hyun-sik	18
	Florist Lady	Park Joon-geum			3
2nd Song	Florist Lady	Park Joon-geum	Waiting for Tomorrow (내일을 기다려)	Park Kang-sung [ko]	—

Episode 320

Episode 320 was broadcast on August 29, 2021.^[89][90]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	My House	Seungmin of Golden Child	My House (우리집)	2PM	5
	Rubber Shoes	Sungmin of Super Junior	One of My People Go (내 하나의 사람은 가고)	Im Hee-sook [ko]	16
Pair 2	Harmonica	Im Sung-eun of Young Turks Club	Stigma (낙인)	Yim Jae-beom	3
	Mung-bean Pancake Gentleman	Johnny Lee	Faraway, My Honey (님은 먼 곳에)	Kim Choo-ja [ko]	18
Special	Harmonica	Im Sung-eun of Young Turks Club	Affection (Dangerous Breakup) (정 (위험한 이별))	Young Turks Club	—
Round 3
Finalists	Rubber Shoes	Sungmin of Super Junior	Uphill Road (오르막길)	Yoon Jong-shin ft. Jung-in	3
	Mung-bean Pancake Gentleman	Johnny Lee	Camellia Lady (동백아가씨)	Lee Mi-ja	18
Final
Battle	Mung-bean Pancake Gentleman	Johnny Lee	Previous three songs used as voting standard		11
	Non-face-to-face Boyfriend	Bae Doo-hoon of Forestella	Marry Me	Maktub [ko]	10

161st Generation Mask King

• Contestants: Lim Kim, Bae Young-man [ko], Seo In-young, Lee Euaerin [ko] (Nine Muses), Kim Ji-hyun (Roo'ra), Wang Ji-hye, Lee Dae-hyung, Park Wan-kyu

Episodes 321 – 322

Episode 321

Episode 321 was broadcast on September 5, 2021. This marks the beginning of the Hundred-sixty-first Generation.^[91][92]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Rocking Chair	Lim Kim	I Always Miss You (나항상 그대를)	Lee Sun-hee	13
	Rocking Rock	Bae Young-man			8
2nd Song	Rocking Rock	Bae Young-man	Winter Rain Is Falling (겨울비는 내리고)	Kim Beom-ryong [ko]	—
Pair 2	High Heels	Seo In-young	Something	Girl's Day	19
	Glass Shoes	Lee Euaerin of Nine Muses			2
2nd Song	Glass Shoes	Lee Euaerin of Nine Muses	Star (저 별)	Heize	—
Pair 3	Atlantis Princess	Kim Ji-hyun of Roo'ra	One More Time (한번만 더)	Park Sung-shin [ko]	17
	Bold Woman	Wang Ji-hye			4
2nd Song	Bold Woman	Wang Ji-hye	After Play (연극이 끝난 후)	S♯arp	—
Pair 4	Good Morning	Lee Dae-hyung	Endless	Flower	2
	Good Night	Park Wan-kyu			19
2nd Song	Good Morning	Lee Dae-hyung	Because You're My Woman (내 여자라니까)	Lee Seung-gi	—

Episode 322

Episode 322 was broadcast on September 12, 2021.^[93][94][95]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Rocking Chair	Lim Kim	Flying, Deep in the Night (깊은 밤을 날아서)	Lee Moon-sae	4
	High Heels	Seo In-young	Sun Sets in My Heart (가슴에 지는 태양)	Kim Bum-soo	17
Pair 2	Atlantis Princess	Kim Ji-hyun of Roo'ra	Love is as Like a Fragile Glass (사랑은 유리 같은 것)	Won Joon-hee [ko]	4
	Good Night	Park Wan-kyu	If I Hold You in My Arms (너를 품에 안으면)	Cult [ko]	17
Round 3
Finalists	High Heels	Seo In-young	Love, ing (열애중)	Ben	11
	Good Night	Park Wan-kyu	For You (너를 위해)	Yim Jae-beom	10
Final
Battle	High Heels	Seo In-young	Previous three songs used as voting standard		2
	Mung-bean Pancake Gentleman	Johnny Lee	I Lost Love (사랑을 잃어버린 나)	Lee Kwang-jo [ko]	19

Chuseok Special: Duet Mask Kings

• Contestants: Kim Min-seok (MeloMance) & Kim Woo-seok (actor), Kihyun (Monsta X) & Jeong Se-woon, Hong Ji-yoon [ko] & Hong Ji-hyun [ko], Lee Min (As One) & Lisa, Kim Tae-gyun & Kim Tae-gyun (Cultwo), Park Hyun-jin [ko] & Park Goo-yoon [ko], Yoon Hyung-bin [ko] & Jung Kyung-mi [ko], Lee Ji-young (singer) [ko] (Big Mama) & Lee Seung-woo (singer) [ko] (Soulstar [ko])

Episodes 323 – 325

Episode 323

Episode 323 was broadcast on September 19, 2021.^[96] Winner of this special episodes ("Sibling Rebellion") revealed their identities through a special performance on the beginning of episode 327.^[97][98]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Brave Brothers	Kim Min-seok of MeloMance & Kim Woo-seok	And July	Heize ft. Dean ft. DJ Friz [ko]	14
	Cheongdam-dong Brothers-in-law	Kihyun of Monsta X & Jeong Se-woon			7
2nd Song	Cheongdam-dong Brothers	Kihyun of Monsta X & Jeong Se-woon	Confession (고백)	Jung Joon-il [ko]	—
Pair 2	Okay, Excited Sisters	Hong Ji-yoon & Hong Ji-hyun	On Rainy Days (비가 오는 날엔)	Beast	14
	Fantastic Partners	Lee Min of As One & Lisa			7
2nd Song	Fantastic Partners	Lee Min of As One & Lisa	Just a Feeling	S.E.S.	—
Pair 3	The Fish-Shaped Bun Friend	Former baseball player Kim Tae-gyun & Kim Tae-gyun of Cultwo	You That Meet Unexpectedly (어쩌다 마주친 그대)	Songolmae [ko]	2
	The 25th Generation of a Famous Singer	Park Hyun-jin & Park Goo-yoon			19
2nd Song	The Fish-Shaped Bun Friend	Former baseball player Kim Tae-gyun & Kim Tae-gyun of Cultwo	That Was What Happened Then (그땐 그랬지)	Carnival [ko]	—

Episode 324

Episode 324 was broadcast on September 26, 2021.^{[99][100][101]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 4	Royal Family	Yoon Hyung-bin & Jung Kyung-mi	I Knew that I Love You (사랑하게 될 줄 알았어)	Shin Hyo-beom [ko]	4
	Sibling Rebellion	Lee Ji-young of Big Mama & Lee Seung-woo of Soulstar			17
2nd Song	Royal Family	Yoon Hyung-bin & Jung Kyung-mi	The Woman in the Rain (빗속의 여인)	Shin Jung-hyeon	—
Round 2
Special	Mung-bean Pancake Gentleman	Johnny Lee	My Way	Frank Sinatra	—
Pair 1	Brave Brothers	Kim Min-seok of MeloMance & Kim Woo-seok	Proposal (청혼)	Noel	16
	Okay, Excited Sisters	Hong Ji-yoon & Hong Ji-hyun	Twinkle	Girls' Generation-TTS	5
Pair 2	The 25th Generation of a Famous Singer	Park Hyun-jin & Park Goo-yoon	Maze of Love (사랑의 미로)	Choi Jin-hee [ko]	6
	Sibling Rebellion	Lee Ji-young of Big Mama & Lee Seung-woo of Soulstar	Timeless	Zhang Liyin ft. Kim Junsu	15

Episode 325

Episode 325 was broadcast on October 3, 2021.^[102][103]

Order	Stage Name	Real Name	Song	Original artist	Vote
Final
Finalists	Brave Brothers	Kim Min-seok of MeloMance & Kim Woo-seok	Like a Child (아이처럼)	Kim Dong-ryool	3
	Sibling Rebellion	Lee Ji-young of Big Mama & Lee Seung-woo of Soulstar	Hand in Hand (손에 손 잡고)	Koreana	18

162nd Generation Mask King

• Contestants: Kim Doo-young [ko], Choi Sung-min [ko], Kim Jin-woong (born 1979) [ko], Park Hyun-woo, Nada, Hwang Youn-joo, Onesun [ko], Kim Yong-jun (SG Wannabe)

Episodes 325 – 326

Episode 325

Episode 325 was broadcast on October 3, 2021. This marks the beginning of the Hundred-sixty-second Generation.^{[104][105][103]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Striker	Kim Doo-young	Confession (고백)	Park Hye-kyung [ko]	3
	Defender	Choi Sung-min			18
2nd Song	Striker	Kim Doo-young	Forever (영원히)	N.EX.T	—
Pair 2	Umbrella	Kim Jin-woong	Tearful Farewell (뜨거운 안녕)	Johnny Lee [ko]	10
	Woojangsan	Park Hyun-woo			11
2nd Song	Umbrella	Kim Jin-woong	Sonata of Temptation (유혹의 소나타)	Ivy	—
Pair 3	Red Flavor	Nada	Beautiful	Beast	18
	Mild Taste	Hwang Youn-joo			3
2nd Song	Mild Taste	Hwang Youn-joo	Farewell for Me (날 위한 이별)	Kim Hye-rim [ko]	—

Episode 326

Episode 326 was broadcast on October 10, 2021.^[106][107]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 4	Thunder and Lightning	Onesun	I Miss You	Kang Susie	1
	Thunder Tiger	Kim Yong-jun of SG Wannabe			20
2nd Song	Thunder and Lightning	Onesun	Dream (꿈)	Lee Hyun-woo	—
Round 2
Pair 1	Defender	Choi Sung-min	Waiting (작은 기다림)	Cool	10
	Woojangsan	Park Hyun-woo	To Be Alone (홀로 된다는 것)	Byun Jin-sub	11
Pair 2	Red Flavor	Nada	With Me	Wheesung (Realslow)	2
	Thunder Tiger	Kim Yong-jun of SG Wannabe	Love Affair	Im Chang-jung	19
Round 3
Finalists	Woojangsan	Park Hyun-woo	Empty Heart (허무한 마음)	Jeong Won	2
	Thunder Tiger	Kim Yong-jun of SG Wannabe	Distant Memories of You (기억 속의 먼 그대에게)	Park Mi-kyung [ko]	19
Final
Battle	Thunder Tiger	Kim Yong-jun of SG Wannabe	Previous three songs used as voting standard		3
	Mung-bean Pancake Gentleman	Johnny Lee	You Lived Like a Fool (바보처럼 살았군요)	Kim Do-hyang [ko]	18

163rd Generation Mask King

• Contestants: N/A, Julian Jootaek Kim (Miraclass), Cho Gu-ham, Oh Sang-uk, Kim Young-ok, Maria [ko], Lee Ye-joon [ko], Carlos Galvan [ko] (Uptown)

Episodes 327 – 328

6

Episode 327

Episode 327 was broadcast on October 17, 2021. This marks the beginning of the Hundred-sixty-third Generation.^{[98][108][109][110]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Special	Sibling Rebellion	Lee Ji-young of Big Mama & Lee Seung-woo of Soulstar [ko]	This Is Me	Keala Settle & The Greatest Showman Ensemble	—
Round 1
Pair 1	Always Hits the Mark	—	—	—	—
	Unbeaten	Kim Joo-taek of Miraclass			—
2nd Song	Always Hits the Mark	—	—	—	—
Pair 2	Fate Symphony	Cho Gu-ham	Dear Love (사랑아)	The One	17
	Chopsticks March	Oh Sang-uk			4
2nd Song	Chopsticks March	Oh Sang-uk	Think of You (네 생각)	John Park	—
Pair 3	Nacho	Kim Young-ok	Sad Story of Old Couple (어느 60대 노부부 이야기)	Kim Mok-kyung [ko]	7
	Tortilla	Maria			14
2nd Song	Nacho	Kim Young-ok	Empty Space (허공)	Cho Yong-pil	—
Pair 4	Bear Sole	Lee Ye-joon	Holding the End of this Night (이 밤의 끝을 잡고)	Solid	20
	Cow's Feet	Carlos Galvan of Uptown			1
2nd Song	Cow's Feet	Carlos Galvan of Uptown	A-Yo	Jinusean	—
Special	Cow Sole		Back to Me (다시 만나줘)	Uptown	—

Episode 328

Episode 328 was broadcast on October 24, 2021.^{[111][112][113]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Unbeaten	Kim Joo-taek of Miraclass	Back in Time (시간을 거슬러)	Lyn	11
	Fate Symphony	Cho Gu-ham	Like It (좋니)	Yoon Jong-shin	10
Pair 2	Tortilla	Maria	We Meet Again (또 만났네요)	Joo Hyun-mi	0
	Bear Sole	Lee Ye-joon	Hello	Huh Gak	21
Special	Tortilla	Maria	Crying in Regret (English version) (울면서 후회하네)	Joo Hyun-mi	—
Round 3
Finalists	Unbeaten	Kim Joo-taek of Miraclass	So You (그래서 그대는)	Yarn [ko]	4
	Bear Sole	Lee Ye-joon	Forsake (연)	Big Mama	17
Final
Battle	Bear Sole	Lee Ye-joon	Previous three songs used as voting standard		18
	Mung-bean Pancake Gentleman	Johnny Lee	Going Years (가는 세월)	Seo Yoo-seok [ko]	3
Special	Mung-bean Pancake Gentleman		Tearful Farewell (뜨거운 안녕) Love Fool (바보 사랑)	Johnny Lee [ko]	—

164th Generation Mask King

• Contestants: Yukika, Lee Hyun [ko] (5tion), Hwang Soo-kyung [ko], Won Mi-yeon [ko], Kim Sang-woo (Shinchon Blues [ko]), Jo Choon [ko], Yang Jeong-won [ko], Kim Jae-hwan

Episodes 329 – 330

Episode 329

Episode 329 was broadcast on October 31, 2021. This marks the beginning of the Hundred-sixty-fourth Generation.^{[114][115][116]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Tagger	Yukika	It's You (그대네요)	Sung Si-kyung & IU	2
	Cubed Radish Kimchi	Lee Hyun of 5tion			19
2nd Song	Tagger	Yukika	Umbrella (우산)	Younha	—
Pair 2	Amor Fati	Hwang Soo-kyung	You Let Me Go with a Smile (Don't Cry for Me) (미소를 띄우며 나를 보낸 그 모습처럼)	Lee Eun-ha [ko]	1
	Happy Halloween	Won Mi-yeon			20
2nd Song	Amor Fati	Hwang Soo-kyung	Unpredictable Life (알 수 없는 인생)	Lee Moon-sae	—
Pair 3	Unbelievable	Kim Sang-woo of Shinchon Blues	For Love (사랑을 위하여)	Kim Jong-hwan	17
	Perfection	Jo Choon			4
2nd Song	Perfection	Jo Choon	Chan Chan Chan (찬찬찬)	Pyeon Seung-yeop [ko]	—
Pair 4	Fairy of Shampoo	Yang Jeong-won	Butterfly (나비야)	Ha Dong-kyun	2
	Ending Fairy	Kim Jae-hwan			19
Special	Ha Dong-kyun				—
2nd Song	Fairy of Shampoo	Yang Jeong-won	I'm Your Girl	S.E.S.	—

Episode 330

Episode 330 was broadcast on November 7, 2021.^{[117][118][119]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Cubed Radish Kimchi	Lee Hyun of 5tion	Sea of Love	Fly to the Sky	4
	Happy Halloween	Won Mi-yeon	Remaining (미련)	Kim Gun-mo	17
Special	Cubed Radish Kimchi	Lee Hyun of 5tion	More Than Words	5tion	—
Pair 2	Unbelievable	Kim Sang-woo of Shinchon Blues	Pick Me (나야 나)	Produce 101	7
	Ending Fairy	Kim Jae-hwan	Next Level	Aespa	14
Round 3
Finalists	Happy Halloween	Won Mi-yeon	365 Days (365일)	Ali	17
	Ending Fairy	Kim Jae-hwan	Walking Along (걷고 싶다)	Cho Yong-pil	4
Final
Battle	Happy Halloween	Won Mi-yeon	Previous three songs used as voting standard		6
	Bear Sole	Lee Ye-joon	Train to the World (세계로 가는 기차)	Deulgukhwa [ko]	15
Special	Happy Halloween	Won Mi-yeon	Farewell Trip (이별여행)	Won Mi-yeon [ko]	—

165th Generation Mask King

• Contestants: Linzy [ko] (Fiestar), Kim Kyung-ah [ko], Kim Tae-sul, John Noh [ko] (RabidAnce), Yoo Mi-ri [ko], Park Kang-sung [ko], Kim Heung-soo, Chunja

Episodes 331 – 332

Episode 331

Episode 331 was broadcast on November 14, 2021. This marks the beginning of the Hundred-sixty-fifth Generation.^{[120][121][122]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	One-off Payment	Linzy of Fiestar	Love	S.E.S.	17
	Spoonworm	Kim Kyung-ah			4
2nd Song	Spoonworm	Kim Kyung-ah	Two of Us (둘이서)	Lee Chae-yeon	—
Pair 2	Buckwheat Flowers	Kim Tae-sul	Don't Go, Don't Go (가지마 가지마)	Brown Eyes	6
	Camellia Flower	John Noh of RabidAnce			15
2nd Song	Buckwheat Flowers	Kim Tae-sul	Do You Want to Walk with Me? (나랑 같이 걸을래 (바른연애 길잡이 X 적재))	Jukjae [ko]	—
Pair 3	A Woman who Looks Good in Jeans	Yoo Mi-ri	Wishes (희망사항)	Byun Jin-sub	5
	A Man who Cooks Well Kimchi Fried Rice	Park Kang-sung			16
2nd Song	A Woman who Looks Good in Jeans	Yoo Mi-ri	Shaky Friendship (흔들린 우정)	Hong Kyung-min	—
Special	A Woman who Looks Good in Jeans		Note of Youthfulness (젊음의 노트)	Yoo Mi-ri [ko]	—
Pair 4	Cheer Up, Test-takers!	Kim Heung-soo	Traffic Light (신호등)	Lee Mu-jin	6
	Boss, Nice Shot!	Chunja			15
2nd Song	Cheer Up, Test-takers!	Kim Heung-soo	Beautiful Fact (아름다운 사실)	Boohwal	—

Episode 332

Episode 332 was broadcast on November 21, 2021.^[123][124]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	One-off Payment	Linzy of Fiestar	Sending Love (송애)	Esther	13
	Camellia Flower	John Noh of RabidAnce	The Unwritten Legend (전설속의 누군가처럼)	Shin Seung-hun	8
Pair 2	A Man who Cooks Well Kimchi Fried Rice	Park Kang-sung	About Romance (낭만에 대하여)	Choi Baek-ho [ko]	5
	Boss, Nice Shot!	Chunja	My Love by My Side (내 사랑 내 곁에)	Kim Hyun-sik	16
Special	A Man who Cooks Well Kimchi Fried Rice	Park Kang-sung	Toy Soldiers (장난감 병정)	Park Kang-sung [ko]	—
Round 3
Finalists	One-off Payment	Linzy of Fiestar	One Woman (한 여자)	Ben	11
	Boss, Nice Shot!	Chunja	Knees (무릎)	IU	10
Final
Battle	One-off Payment	Linzy of Fiestar	Previous three songs used as voting standard		1
	Bear Sole	Lee Ye-joon	Alone (홀로)	Jung Key & Kim Na-young	20

166th Generation Mask King

• Contestants: An Yu-jin (Ive), Z-E (rapper) [ko] (Turtles), Jeon Cheol-woo [ko], Im Hyung-soon [ko] (Five Fingers [ko]), Shin Ye-chan (singer) [ko] (Lucy), Im Hyuk-pil [ko], Kwon Soon-woo, Rumble Fish

Episodes 333 – 334

Episode 333

Episode 333 was broadcast on November 28, 2021. This marks the beginning of the Hundred-sixty-sixth Generation.^{[125][126][127]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Olivia Hussey	An Yu-jin of Ive	Goodbye (안녕)	Park Hye-kyung [ko]	13
	Beyoncé	Z-E of Turtles			8
2nd Song	Beyoncé	Z-E of Turtles	I Will Love You (사랑할거야)	Baby Angel	—
Pair 2	Pork Back-bone Stew	Jeon Cheol-woo	I Like Saturday Night (토요일은 밤이 좋아)	Kim Jong-chan [ko]	5
	Fish Cake Soup	Im Hyung-soon of Five Fingers			16
2nd Song	Pork Back-bone Stew	Jeon Cheol-woo	Said (라구요)	Kang San-ae	—
Pair 3	I Fall in Love Easily	Shin Ye-chan of Lucy	In Front of the Post Office in Autumn (가을 우체국 앞에서)	Kim Hyun-sung [ko]	18
	Green Light	Im Hyuk-pil			3
2nd Song	Green Light	Im Hyuk-pil	Spring Days of My Life (내 생애 봄날은)	Can	—
Pair 4	Driving By a Beginner	Kwon Soon-woo	Whistle (휘파람)	Lee Moon-sae	0
	Driver's License	Rumble Fish			21
2nd Song	Driving By a Beginner	Kwon Soon-woo	The Road to Me (내게 오는 길)	Sung Si-kyung	—

Episode 334

Episode 334 was broadcast on December 5, 2021.^{[128][129][130]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Olivia Hussey	An Yu-jin of Ive	Nappa (나빠)	Crush	4
	Fish Cake Soup	Im Hyung-soon of Five Fingers	Moment Seeing First Time (처음 본 순간)	Songolmae [ko]	17
Pair 2	I Fall in Love Easily	Shin Ye-chan of Lucy	Because I Love You (사랑하기 때문에)	Yoo Jae-ha	5
	Driver's License	Rumble Fish	Nocturne (야상곡)	Kim Yoon-ah	16
Round 3
Finalists	Fish Cake Soup	Im Hyung-soon of Five Fingers	Sad Beatrice (슬픈 베아트리체)	Cho Yong-pil	8
	Driver's License	Rumble Fish	Turn on the Radio Loudly (크게 라디오를 켜고)	Sinawe	13
Special	Fish Cake Soup	Im Hyung-soon of Five Fingers	Balloon (풍선)	Five Fingers [ko]	—
Final
Battle	Driver's License	Rumble Fish	Previous three songs used as voting standard		5
	Bear Sole	Lee Ye-joon	Are You Listening? (듣고 있나요)	Lee Seung-chul	16

167th Generation Mask King

• Contestants: Kim Myung-seon [ko], Jo Seung-goo [ko], Bang Eun-hee, Joo Byung-seon [ko], Mirani, Ryuji (singer) [ko] (Broccoli, You Too?), Lee Mu-jin, Choi Joon-suk

Episodes 335 – 336

Episode 335

Episode 335 was broadcast on December 12, 2021. This marks the beginning of the Hundred-sixty-seventh Generation.^[131][132]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 1
Pair 1	Let It Go	Kim Myung-seon	Only Just (뿐이고)	Park Goo-yoon [ko]	4
	Let It Be	Jo Seung-goo			17
2nd Song	Let It Go	Kim Myung-seon	Ring Ring (따르릉)	Hong Jin-young	—
Pair 2	Shopping Basket	Bang Eun-hee	Happy Our Love (기쁜 우리 사랑은)	Choi Sung-soo [ko]	3
	Bookmark	Joo Byung-seon			18
2nd Song	Shopping Basket	Bang Eun-hee	Seoul Tango (서울 탱고)	Bang Sil-yi [ko]	—
Pair 3	The Game of Go	Mirani	What Do I Do? (어떡하죠)	2AM	0
	Puppy	Ryuji of Broccoli You Too			21
2nd Song	The Game of Go	Mirani	Rooftop (옥탑방)	N.Flying	—
Pair 4	Winter Kid	Lee Mu-jin	Fate (인연)	Lee Seung-chul	18
	Winter Sea	Choi Joon-suk			3
2nd Song	Winter Sea	Choi Joon-suk	My Woman (내 여자)	The One	—

Episode 336

Episode 336 was broadcast on December 19, 2021.^[133][134]

Order	Stage Name	Real Name	Song	Original artist	Vote
Round 2
Pair 1	Let It Be	Jo Seung-goo	At Any Time (무시로)	Na Hoon-a	9
	Bookmark	Joo Byung-seon	Seoul Seoul Seoul (서울 서울 서울)	Cho Yong-pil	12
Special	Let It Be	Jo Seung-goo	Wind Flower Girl (꽃바람 여인)	Jo Seung-goo [ko]	—
Pair 2	Puppy	Ryuji of Broccoli You Too	Let's Forget About It (이젠 잊기로 해요)	Kim Wan-sun	0
	Winter Kid	Lee Mu-jin	With You (그대랑)	Lee Juck	21
Round 3
Finalists	Bookmark	Joo Byung-seon	The Yoke (멍에)	Kim Soo-hee	3
	Winter Kid	Lee Mu-jin	To You Again (너에게로 또 다시)	Byun Jin-sub	18
Special	Bookmark	Joo Byung-seon	Mt. Chilgab (칠갑산)	Joo Byung-seon [ko]	—
Final
Battle	Winter Kid	Lee Mu-jin	Previous three songs used as voting standard		13
	Bear Sole	Lee Ye-joon	Left & Right	Seventeen	8

168th Generation Mask King

• Contestants: Thunder, Danny Koo [ko], Kim Sung-kyung, Kim Jang-soo [ko] (The Treble Clef [ko]), Bae Yoon-jeong [ko], Rhee Dae-eun, Lee Kyung-ae [ko], Kim Hye-yeon (South Korean singer) [ko]

Episode 337

Episode 337 was broadcast on December 26, 2021. This marks the beginning of the Hundred-sixty-eighth Generation.^{[135][136][137][138]}

Order	Stage Name	Real Name	Song	Original artist	Vote
Opening	Chow Yun-fat	Seungyoon of Winner	Bounce	Cho Yong-pil	—
Round 1
Pair 1	Rudolph the Red Nosed Reindeer	Thunder	Instinctively (본능적으로)	Yoon Jong-shin	16
	Arrow Nose	Danny Koo			5
2nd Song	Arrow Nose	Danny Koo	Don't Say It's Not Love (사랑이 아니라 말하지 말아요)	Lee So-ra	—
Pair 2	Tiger	Kim Sung-kyung	Somebody's Dream (어떤이의 꿈)	Bom Yeoreum Gaeul Kyeoul	1
	Dad	Kim Jang-soo of The Treble Clef			20
2nd Song	Tiger	Kim Sung-kyung	You're in My Embrace (그대 내 품에)	Yoo Jae-ha	—
Pair 3	Graduation Photo	Bae Yoon-jeong	White Winter (하얀 겨울)	Mr. 2 [ko]	12
	Family Photo	Rhee Dae-eun			9
2nd Song	Family Photo	Rhee Dae-eun	Confession Is Not Flashy (화려하지 않은 고백)	Lee Seung-hwan	—
Pair 4	Be Careful Not to Catch a Cold!	Lee Kyung-ae	The First Snow's Falling (첫눈이 온다구요)	Lee Jeong-seok [ko]	4
	Everyone, Be Rich!	Kim Hye-yeon			17
2nd Song	Be Careful Not to Catch a Cold!	Lee Kyung-ae	Spring Rain (봄비)	Lee Eun-ha [ko]	—