It's Battle of the Bands with a couple of extra goodies.
From Publisher's website:
Battle of the Bands: Encore Edition calls upon 120 cards for your base Battle of the Bands games. It features all 105 cards from the main set, the 5 promotional cards and 10 new cards never seen before! The game includes 4 dice and you can directly include your Backstage Pass cards for up to 6 players!