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In 2019, Baekhyun became the leader of SuperM, a South Korean-American supergroup formed by SM Entertainment and Capitol Records. The group consists of seven members from various SM Entertainment groups: Taemin from Shinee, Kai and Sehun from EXO, Baekhyun and Chen from EXO-CBX, and Mark and Lucas from NCT. SuperM debuted on October 4, 2019, with their EP "SuperM".