Cortis

Cortis (Korean: 코르티스; stylised in all caps) is a South Korean boy band formed by Big Hit Music. The group consists of five members: James, Juhoon, Martin, Seonghyeon, and Keonho. They debuted on August 18, 2025, with the digital single "What You Want", the lead single of their first extended play (EP) Color Outside the Lines.

Cortis
Cortis in September 2025 L-R, back: Seonghyeon, James L-R, front: Martin, Juhoon, Keonho
Background information
Origin	Seoul, South Korea
Genres	K-pop
Years active	2025 (2025)–present
Labels	Big Hit Republic[1]
Members	James Juhoon Martin Seonghyeon Keonho
Website	cortisofficial.us

Name

The name "Cortis" is derived from six letters taken from the phrase "Color Outside the Lines". It symbolizes the band's commitment to thinking freely, unconstrained by the norms and expectations set by society.^[2][3]

History

2025–present: Debut with Color Outside the Lines

Big Hit Music's parent company, Hybe Corporation, first unveiled plans for a new boy band in April 2025, slated to debut in the third quarter of the year.^[4] Later in June, an August debut date was announced by Big Hit.^[5] The band members and its name, Cortis, were officially announced on July 14 and August 7, respectively.^[6][7] Cortis released a music video for their pre-debut track "Go!" on August 11.^[8] They marked their official debut with the release of "What You Want" on August 18, serving as the lead single of their upcoming first EP Color Outside the Lines.^[9] The EP was later released on September 8, alongside its third single "Fashion".^[10]

Members

• James (제임스)
• Juhoon (주훈)
• Martin (마틴)
• Seonghyeon (성현)
• Keonho (건호)

Discography

Extended plays

List of extended plays, showing selected details, chart positions and sales figures

Title	Details	Peak chart positions									Sales
		KOR [11]	AUT [12]	BEL (FL) [12]	BEL (WA) [12]	GER [12]	JPN [13]	JPN Hot [14]	US [15]	US World [16]
Color Outside the Lines	Released: September 8, 2025 Labels: Big Hit Music Formats: CD, LP, digital download, streaming	2	29	29	54	67	4	28	15	2	KOR: 620,056[17] JPN: 24,900[18]

Singles

List of singles, showing year released, selected chart positions, and name of the album

Title	Year	Peak chart positions									Album
		KOR [19]	HK [20]	JPN Hot [21]	MYS Intl. [22]	NZ Hot [23]	SGP [24]	TWN [25]	VIE Hot [26]	WW [27]
"Go!"	2025	46	17	—	15	35	22	9	96	175	Color Outside the Lines
"What You Want"		104	—	87	—	—	—	—	—	—
"Fashion"		94	—	—	19	24	—[A]	18	84	—[B]
"—" denotes releases that did not chart or were not released in that region.

Other charted songs

List of other charted songs, showing year released, selected chart positions, and name of the album

Title	Year	Peak chart positions	Album
		KOR DL [30]
"Joyride"	2025	39	Color Outside the Lines
"Lullaby"		43
"What You Want" (featuring Teezo Touchdown)		157

Videography

Music videos

List of music videos, showing year released, and name of the director(s)

Title	Year	Director(s)	Ref.
"Go!"	2025	Idiots & Cortis	[31]
"What You Want"			[32]
"Fashion"		Bang Jaeyeob	[33]
"Joyride"			[34]
"Lullaby"		Cortis & Idiots	[35]

Notes

1. "Fashion" did not enter the Official Singapore Chart, but peaked at number 14 on the Regional Chart.^[28]
2. "Fashion" did not enter the Billboard Global 200, but peaked at number 198 on the Global Excl. US.^[29]