Can I play Rock Band 4 European downloadable content on a U.S. console and game?
Rock Band games are regional, so you will need to make sure that the game, console and DLC you are attempting to use are all the same region. If you attempt to download songs from the European Rock Band Music Store onto a U.S. console and game, or vice versa, the download will likely be unplayable. This also applies to Asia and Australia regions. In the event that you have purchased DLC for the wrong region, contact your console's customer support to look into an account adjustment.