KARA , Apink , 4minute , Twice , Crayon Pop , Miss A , and T-ARA are among popular South Korean groups .
Popular South Korean groups include Girls ' Generation , KARA , 2NE1 , Black Pink , f ( x ) , SISTAR , Girl 's Day , Apink , 4minute , Twice , Crayon Pop , Red Velvet , Miss A , Wonder Girls , T-ARA and others .
Girl group