Exo-SC (Korean: 세훈&찬열; RR: Sehun & Chanyeol; stylized as EXO-SC) is the second official sub-unit of South Korean-Chinese boy band Exo. Formed by SM Entertainment in 2019, the group is composed of two Exo members: Chanyeol and Sehun. Their debut extended play What a Life was released on July 22, 2019.