EXO-CBX

Exo-CBX (Korean: 엑소-첸백시; RR: Exo-Chen-Baek-Xi) is the first sub-unit of South Korean boy band Exo, consists of three members: Xiumin, Baekhyun, and Chen. They debuted on October 31, 2016, with the extended play (EP) Hey Mama!.