BC (성호) is a South Korean rapper and musician under Liveworks Company. He is a member of the boy group 1TEAM.
He was also a former member of boy group I-REX and participated as a contestant in the idol reality survival shows BOYS24 and MIXNINE.
BC first debuted in 2013 under the stage name Ra.E (라이) in the boy group I-REX under Tarzan Entertainment. The group released only one single album, “Rush To The Top”, before disbanding sometime in the following year.
Three years later, under his real name, BC appeared as a contestant on the idol reality survival show, BOYS24 and was a member of their pre-debut boy group of the same name. He was the leader and the member of the Red Unit. On March 10, 2017, CJ E&M and Liveworks Company announced that BC was to leave his position as part of the first promotional unit but still remain in the group following controversies about his past actions in junior high school. The first promotional unit would move forward as an eight-member group. By fan vote, BC was one of the nine final members of the boy group, however MMO Entertainment, who manage the debut team, announced that BC to had left the team due to differing musical point of view.
Just a few months later, BC reappeared as an upcoming contestant on another idol reality survival show, MIXNINE. He was eliminated in episode 13 with his final rank being 15th place.
Over a year later, BC was introduced as member of the upcoming boy group 1TEAM (then known as TEAM LWZ) on December 17, 2018. He officially debuted with the group on March 27, 2019 with their debut mini album, Hello!.
Source: kpop wiki