Leader and performer in the Pledis supergroup Seventeen who is known by the stage name Hoshi. He choreographs most of the group's routines.
He was a Taekwondo champion when he was young and would become a black belt.
In middle school, he created his own dance club and would participate in competitions.
His hometown is Namyangju-si, Gyeonggi-do.
He looks up to choreographer Keone Madrid as a role model.