Marcus & Martinus, occasionally known as M&M, are a Norwegian dance-pop duo consisting of identical twin brothers Marcus and Martinus Gunnarsen. They have released four studio albums: Hei, Together, Moments and Unforgettable. Since winning Melodi Grand Prix Junior in 2012, they have won numerous prizes, such as Spellemannprisen in 2017. The duo won Masked Singer Sverige in 2022, won Rockbjören in Sweden 2024 and participated in Melodifestivalen in 2023 and 2024. They won the 2024 edition of Melodifestivalen and represented host nation Sweden in the Eurovision Song Contest 2024 in Malmö with the song "Unforgettable".