We're now going to progress to some steps which are a bit more difficult Ready Set and begin Bighit Exclusive Dj Friz Who's that BANGTAN 방탄소년단 What Too cool Too cool for School Too cool Too cool for School 십 대 이십 댈 대신해 쉽게 우리 얘길 해 Too cool Too cool for School Too cool Too cool for School 십 대 이십 댈 대신해 쉽게 우리 얘길 해