Famous for his membership in the South Korean boy band VIXX, he is also known by the stage name Leo. His band's honors include a 2013 SBS MTV Best Rookie Group Award and a Seoul Music Award. He joined VIXX after participating in the Mnet reality television talent competition MyDOL. In his first appearance with VIXX -- in a 2012 episode of M! Countdown -- he performed the song "Super Hero."
