1TEAM (원팀; known pre-debut as TEAM LWZ (팀라웍즈)) is a five-member boy group under Liveworks Company. They debuted on March 27, 2019 with their first mini album Hello!. pre-debut : BC and Rubin had experience in the music industry prior to debut. BC was a former member of the boy group I-REX until it's disbandment. He was also a former contestant on the idol survival reality show, BOYS24, and was a member of their pre-debut boy group of the same name.