Son Chang-il (Korean: 손창일; born January 1, 1982), better known by his stage name Illson (stylized as ILLSON) and formerly as Double K (Korean: 더블 케이), is a South Korean rapper. He was the winning judge/producer on the first season of Show Me the Money before making a second appearance as a contestant in the sixth season. He released his first album, Positive Mind, on October 28, 2004.