MTV Games and Harmonix are opening up the Rock Band music store to everyone later this year. The Rock Band Network allows any artist to upload and price their own tracks for users to download from the game's music store.
According to a report from Billboard, that service will launch sometime this year for the Xbox 360 versions of Rock Band, with plans to bring those "popular tracks" to the PlayStation 3 and Wii versions "eventually." Artists can submit their songs to a group of "Harmonix-trained freelance game developers" who will prep the tracks for use in game.