Today, Mnet's M! Countdown was finally back after a break last week due to the naval ship tragedy. The boys of BEAST returned on stage to perform their hit track Shock! Check out their shocking performance below. http://www.youtube.com/watch?v=gd6oLhwMRok After the end of their promotions with Shock, BEAST will perform a ballad song, presumably Easy from their second album, for their follow-up promotions in May. Stay tuned!