A bundle of three tracks from British rock group Muse will be downloadable content for Neversoft's Guitar Hero III: Legends of Rock, publisher Activision announced today.

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.

Music label Mercury Records has revealed that the Def Leppard single "Nine Lives" will debut as a downloadable track for the PlayStation 3 and Xbox 360 editions of Neversoft's Guitar Hero III: Legends of Rock.

Two older Def Leppard tracks--"Rock of Ages" and "Photograph"--round out the three-song bundle, which will be available for download beginning April 24. Guitarist Phil Collen had previously indicated that a slightly different trio of tracks would instead appear in Guitar Hero IV.

Though the content will be available for both PlayStation 3 and Xbox 360 users in North America April 24, European PlayStation 3 owners will have to wait until May 8 to obtain the track pack. According to Mercury, the April 24 release will give players the chance to experience the new track a week before its retail availability.

No pricing information was provided. Past Guitar Hero 3 track packs have sold for 500 Microsoft Points ($6.25).