BTOB (Korean: 비투비) – pronounced “Bee to Bee” – is an all-male South Korean K-pop group. They were formed by Cube Entertainment in 2012 as a 7-piece group, but since the departure of Jung Il-hoon at the end of 2020, the group has continued on as a 6-man performing group. The current lineup includes Seo Eun-kwang, Lee Min-hyuk, Lee Chang-sub, Im Hyun-sik, Peniel Shin, and Yook Sung-jae.
They made their first appearance on March 21, 2012 on M Countdown. This appearance was followed by their debut mini album Born to Beat on April 3, 2012. Since then, they’ve released 3 Korean LPs, and 1 Japanese album.