BTOB (aka Born TO Beat) is a South Korean six-member boy group formed by Cube Entertainment.

Originally as seven, they made their debut on March 21st, 2012 with their first single “Insane.” The group consists of Eunkwang, Minhyuk, Changsub, Hyunsik, Peniel, and Sungjae.

On December 31st, 2020, the seventh member, Ilhoon, officially left BTOB after he was caught for illegal marijuana use.

BTOB has 2 sub units: BTOB-BLUE which consists of the vocalists in BTOB, namely Eunkwang, Changsub, Hyunsik and Sungjae, and BTOB 4U which consists of Eunkwang, Changsub, Minhyuk and Peniel.