The stars of the film "Pitch Perfect" will open the 2013 MTV Movie Awards in their first-ever live performance on April 14. "Pitch Perfect" stars Skylar Astin, Anna Camp, Ester Dean, Adam Devine, Alexis Knapp, Hana Mae Lee, Ben Platt, Brittany Snow and host Rebel Wilson will re-unite as the dueling college acappella groups, the Barden Bellas and Treblemakers. They will perform a ...
