BTS (방탄소년단) 'Dynamite' Official Music Video. BTS (Korean: 방탄소년단; RR: Bangtan Sonyeondan), also known as the Bangtan Boys, is a seven-member South Korean boy band that began formation in 2010 and debuted in 2013 under Big Hit Entertainment. The septet—composed of RM, Jin, Suga, J-Hope, Jimin, V, and