BtoB (play /ˈbtwɒb/; Korean: 비투비; acronym for Born to Beat) is a seven-member male vocal group from South Korea. They were formed in 2012 by Cube DC, a sub-label of Cube Entertainment. The group debuted on March 22, 2012 on M! Countdown with two title tracks.
The group was formed by Cube Entertainment, which in April 2012 released a debut album, Born to Beat, with songs co-written by Jörgen Elofsson. BtoB was chosen as the new group in order to show their competitiveness and their survival strategies for being known as 'performance-dols' within the competition of the music world for cable Mnet's reality program 'Amazon (Idol Master ZONE) for their first broadcast to be on the 4 April 2012 which marks BtoB first reality program. It was stated from the start that Seo Eunkwang, Lee Minhyuk, Lim Hyunsik, Jung Ilhoon and Lee Minwoo (이민우) were on the list of original members who are waiting to be debuted under the name of "BtoB". However, Lee Minwoo had dropped out of the list of confirmed members after their first appearance on the sitcom and the fact of him not debuting with BtoB had upset many fans. On March 23, 2012, Cube Entertainment had clarified that there are problems with Minwoo's health resulting in him being unable to blend into the group. Adding on, he will still be a trainee under Cube. If his health is to recover, he might still get a chance to debut.