The Rock Band Rivals Expansion is a must have for any serious Rock Band 4 player, whether you are looking to join the online community or just looking to amp up the Rock Band party. The Rivals Expansion adds the following features to Rock Band 4: Over 35 additional free songs Online play: move the party online with matchmaking, public or private sessions, tools to maximize your DLC overlap and more! Rivals mode: Band together with friends across the globe in this competitive online multiplayer stats battle. Join Crews to prove your skill and crush your rivals. Rockudrama: An all new campaign mode telling the story of YOUR band’s triumph over adversity in the world’s first playable music documentary. Access to future updates and songs exclusive to the Rivals community Pick up and play with a wide variety of supported USB mics or use compatible guitar and drum controllers for the full Rock Band experience.