My family is going to WDW for our fourth vacation between Christmas and New Year's and we are debating where we should spend New Year's Eve. We've done MK and Epcot, but never MGM. With four teenagers, we've narrowed it down to Epcot or MGM. I've heard there are concerts at MGM that night, but I've never seen any concrete details. Does anyone know what goes on or have any suggestions? Thanks for any advice.