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.
Birth Name: Seo
Eun Kwang
Stage Name: Eunkwang
Birthday: November 22, 1990
Position: Main
Vocalist, Leader
Height: 173 cm
Weight: 62 kg
Education: Dongshin University – Applied Music
Specialties: Vocals, piano
Birth Name: Lee
Min Hyuk
Stage Name: Minhyuk
Birthday: November
29, 1990
Position: Vocalist,
Rapper, Face of The Group
Height: 173
cm
Weight: 61
kg
Blood Type: A
Education: Dankook
University – Musical
Specialties: Writing lyrics, composing music, rap making,
exercising, acrobatics
Birth Name: Lee Chang Sub
Stage Name: Changsub
Birthday: February
26, 1991
Position: Vocalist
Height: 177
cm
Weight: 64
kg
Education: Howon
University – Applied Music
Specialty: Piano,
drums
Birth Name: Lim Hyun Sik
Stage Name: Hyunsik
Birthday: March
7, 1992
Position: Vocalist,
Dancer
Height: 177
cm
Weight: 66
kg
Education: Howon
University – Applied Music
Specialties: Vocal,
Composition, Lyrics, Guitar, Piano
Birth Name: Shin Dong Geun
Stage Name: Peniel
Birthday: March
10, 1993
Position: Vocalist, Dancer
Height: 175
cm
Weight: 63
kg
Education: Hanyang University – International Studies
Specialties: Acting, guitar
Facts: He was born and raised in Chicago, Illinois,
USA. Another former trainee of JYPE.
Birth Name: Jung Il Hoon
Stage Name: Ilhoon
Birthday: October
4, 1994
Position: Vocalist,
Rapper
Height: 176
cm
Weight: 64
kg
Education: Hanlim
Arts High School
Specialties: Rap,
Writing lyrics, Composition
Birth Name: Yook Sung Jae
Stage Name: Sungjae
Birthday: May
2, 1995
Position: Vocalist,
Rapper, Maknae
Height: 180
cm
Weight: 68
kg
Education: Hanlim
Arts High School
Specialties: Vocals,
snowboarding
