B2ST (BEAST) Member Profile: B2ST Facts, B2ST Ideal Type Beast (비스트) consists of 5 members: Yoon Doojoon, Yong Junhyung, Yang Yoseob, Lee Gikwang, and Son Dongwoon. Jang Hyunseung left the band after 7 years, in April 2016. The band debuted in October 2009 under Cube Entertainment. They left their old agency in 2016 and now … Continue reading B2ST (BEAST) Members Profile