Frontman for Maroon 5 and judge/mentor on THE VOICE, Adam Levine not only picked a winner in his protege Javier Colon but he picked a winner on joining the US version of the show with judges Christina Aguilera, Cee Lo Green and Blake Shelton. It was reported earlier today that all the judges will be back for season 2 of the successful singing competition. Here is Adam Levine signing for fans recently in Hollywood....