DooJoon

Birth name : Yoon Doo Joon (Hangul: 윤두준)
Date of birth : July 4, 1989 (age 20)
Position : Leader, Rapper, Vocalist

Doo-joon is the leader of Beast. He was a candidate for JYP Entertainment, being featured in the Mnet documentary Yeolhyeolnama (Korean: 열혈남아, "Hot Blooded Men") with 2AM and 2PM but has been an eliminated member. Before his debut in Beast, he auditioned for High Kick Through the Roof and was offered a role in the sitcom, but turned it down for his music career. He became a member of reality-variety series Danbi, part of MBC's Sunday Sunday Night line-up.

Doo-joon was in AJ's music video for "Nunmuleul Dakko" (Korean: "눈물을 닦고", "Wiping the Tears") before they debuted as part of Beast. He was also a guest rapper for Gavy NJ's song "Sun Flower".