[Pictures] After School posed with their drum teacher backstage!

Already made their comeback at Music Bank last friday with "Bang!",the girls posed with their drum teacher at the backstage of Music Bank.

Their comeback stage was a successful one as the girls managed to put up an excellent drum performance at the show.They thanked their drum teacher after their performance and kudos to the teacher for making the girls so remarkable in their performance.

Bang! - 3rd Single