Timing is the fourth Korean mini-album by the leader and main rapper of what boyband?
Kim Hyun-joong Kim Hyun-joong (; born June 6, 1986) is a South Korean actor and singer, and the leader and main rapper of boyband SS501.
Xiumin Kim Min-seok (born (1990--) 26, 1990 ), better known by his stage name Xiumin, is a South Korean singer and actor. He is best known as a member of the South Korean-Chinese boy group EXO, its sub-group EXO-M, and its sub-unit EXO-CBX.