Previously bundled with the February issue of Official Xbox Magazine, the HMX Pack contains three songs from Harmonix-selected artists: "Rock Rebellion" by Bang Camaro, "Shake" by Count Zero, and Freezepop's "Super Sprode."

Each track will sell individually for 80 Microsoft Points ($1), with the three-track bundle going for 240 Microsoft Points ($3).

Due to Sony's redesign of the PlayStation Store, the pack will not be available for the PlayStation 3 version until the PlayStation Store relaunches in mid-April.