Given the task definition and input, reply with output. You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).

concept: Mtv answers: ['Twisted Sister', 'Suicidal Tendencies', "Guns N' Roses", 'Red Hot Chili Peppers', 'AC/DC', 'Nirvana', 'Run-D.M.C.', 'Ice Cube', 'The Offspring', 'Metallica']
who sang at the mtv movie awards 2011?