The last member of Brand New Music's rookie boy group YOUNITE is former 'School Rapper 4' contestant DEY

Brand New Music's 9-member rookie boy group YOUNITE has finally revealed its 9th member, DEY, the team's main rapper. 

Formerly known as contestant Kim Se Hyun on Mnet's 'School Rapper 4', DEY will be debuting as a member of YOUNITE some time later this year, bringing his unique rap skills to the K-Pop scene. Brand New Music has now fully introduced audiences to all 9 members of YOUNITE, which include Lee Eun Sang, Woono, Steve, Kyungmun, Hyungseok, Eunho, Hyunseung, Sion, and DEY. 

Prior to the group's debut set for later this year, YOUNITE will be releasing a group prologue teaser later this week. While you wait for more details on YOUNITE's debut, check out DEY's individual prologue film and teaser photos, above and below.