B2ST, also known as BEAST, was Cube Entertainment's first-ever boy group. They made their official debut on October 16, 2009 with the mini album "Beast Is The B2ST." The group originally consisted of Doojoon, Yoseop, Gikwang, Dongwoon, Junhyung, and Hyunseung. They went on to become one of South Korea's legendary boy groups, gaining support and love from fans all over the world.
In 2016, Hyunseung left the group to pursue solo activities. Since then, B2ST continued to promote as a five-member group. In the same year, all remaining members decide to leave Cube Entertainment with intent to continue group activities elsewhere. However, due to trademark issues, they could no longer promote with the name B2ST.
Eventually, the group redebuted as HIGHLIGHT under their self-established company Around US Entertainment.