The unit group and collaboration craze caused by idol group members [Showbiz Korea]

MORE CLIPS http://http://www.youtube.com/playlist?list=PL9yYI1vDKIPSZ0V66Ccbd3C4rG_7pVmeC&action_edit=1&feature=view_all Subscribe to arirang! http://www.youtube.com/subscription_center?add_user=arirangworld There has been an increasing number of idol group members who are busy with their individual activities, debuting as actors and/or making guest appearances on variety shows. But what hav ...