TheBangtan Boys(방탄소년단, 防?少年?) (also known asBulletproof Boy ScoutsorBTS) is a Korean pop / Hip-Hop 7-member boy group that debuted in 2013 under Big Hit Entertainment . Before the group's official debut, some members have participated in fellow Big Hit Entertainment artists' songs since as early as 2010. In Japan, the group is signed on the label Pony Canyon .