Gil Seong-joon
 Gil Seong-joon (Korean: 길성준 Hanja: 吉成俊; born December 24 1977) better known by his stage name Gil (Korean: 길) is a South Korean singer and television personality. He is co-founder of Leessang. He has been a member of MBC's Infinite Challenge since April 2009.In 2009 Gil joined Infinity Challenge as a guest and later on as a regular co-host. Gil also co-hosted Come To Play.In 2012 Gil joined Voice of Korea as one of the coaches.