[Video] B1A4 are OK on Music Bank

Rookie boy band B1A4 is so lovable! Depsite being a rookie boy group, they have quite a bit of fans, or so you can hear in the screaming from the audience at the start(and in the middle) of their performance! This boy group is known for having 4 members of blood type A and 1 member of blood type B, that's how their group name originated!

On today's Music Bank, B1A4 are 'OK'(Okay) with their performance!


Video Credit: UnknownCarrot170@Youtube