Lee Sung-min (singer)

Lee Sung-min (Korean: 이성민; born January 1, 1986), known mononymously as Sungmin and also LIU, is a South Korean singer, songwriter, and actor. He is a member of the South Korean boy band Super Junior and its sub-groups Super Junior-T, Super Junior-H, and Super Junior-M, though he hasn't performed with the group since 2014.