Lee Ji-hoon (Korean: 이지훈), born November 22, 1996 in Gwangan-dong, Busan, South Korea, is a South Korean singer-songwriter and producer. Better known by his stage name Woozi (Korean: 우지), he is a member of the K-pop boy group SEVENTEEN and the leader of its vocal team sub-unit.
Woozi plays a large role in the production of SEVENTEEN's music. He has been a full member of the Korea Music Copyright Association (KOMCA) since 2019.
Woozi studied classical music and played the clarinet as a child .
