Leessang (Korean: 리쌍) was a South Korean hip hop duo, composed of Kang Hee-gun ("Gary" or "Garie") and Gil Seong-joon ("Gil"). Formed in 2002, the duo has released eight albums to date: two self-titled records in 2002 and 2003, Library of Soul in 2005, Black Sun in 2007, Baekajeolhyeon (백아절현) in 2009, Hexagonal in late 2009, Asura Balbalta in 2011 and Unplugged in 2012. Their last three albums broke numerous records and guided their entry to the mainstream Korean music industry.