South Korean boy band formed and managed by IST Entertainment. The group debuted on December 6, 2017, with the lead single "Boy" from their debut EP The First. The group is composed of members Sangyeon, Jacob, Younghoon, Hyunjae, Juyeon, Kevin, New, Q, Haknyeon, Sunwoo, and Eric. Originally a twelve-man group, Hwall departed from the group in October 2019, citing health issues
