Slated to hit the Xbox 360's online Xbox Live Marketplace and the PlayStation 3's online PlayStation Store on May 8, the pack contains the following songs:

• "Exo-Politics"
• "Supermassive Black Hole"
• "Stockholm Syndrome"

No price point was listed, though past Guitar Hero III track packs have sold for 500 Microsoft Points ($6.25).

Harmonix's competing music title Rock Band will be receiving a sole Muse track of its own, "Hysteria," as downloadable content at some point, likely later this month.