An image from WHAT? DOOR!, one of the productions that also features Riwoo.
Riwoo
October 22, 2003 — Seoul, South Korea
Lee Sang-hyeok (이상혁; born October 22, 2003), known professionally as Riwoo (리우), is a South Korean singer and dancer under KOZ Entertainment. He is a member of the boy group BOYNEXTDOOR.
