American Idol - 50 Gamerpoints - Win the full American Idol tournament at any difficulty level.
American Sensation - 30 Gamerpoints - Win 20 American Idol single player tournaments.
Dedication - 100 Gamerpoints - Score 50 million points - cumulative in any mode).
Girl's Best Friend - 100 Gamerpoints - Get a perfect score throughout a full American Idol tournament.
Global Star - 10 Gamerpoints - Play an Xbox LIVE Arcade League match.
Golden Ticket - 10 Gamerpoints - Pass the auditions phase in single player.
Grudge Match - 10 Gamerpoints - Play an Xbox LIVE Head-to-Head match.
Headbanger - 10 Gamerpoints - Compete offline in a battle Head to Head game.
Hero - 50 Gamerpoints - Achieve Diamond Status for ten different songs.
Inspiration - 10 Gamerpoints - Achieve Gold Status for every song on the disc.
It Didn't Take That Long - 50 Gamerpoints - Score 10 million points - cumulative in any mode).
It Sounds Like a Lot - 20 Gamerpoints - Score 1 million points - cumulative in any mode).
Just the Two of Us - 10 Gamerpoints - Play an offline Co-op Duet.
Legend - 75 Gamerpoints - Achieve Diamond Status for twenty different songs.
Maestro - 175 Gamerpoints - Achieve Diamond Status for every song on the disc.
Megastar - 10 Gamerpoints - Achieve Diamond Status for one song.
Million Seller - 50 Gamerpoints - Achieve Platinum Status for every song on the disc.
Premiership - 10 Gamerpoints - Compete offline in an Arcade League game.
Ranked Global Star Winner - 15 Gamerpoints - Win an Xbox LIVE Arcade League ranked match.
Ranked Grudge Match Winner - 15 Gamerpoints - Win an Xbox LIVE Head-to-Head ranked match.
Ranked World Tour Winner - 15 Gamerpoints - Win an Xbox LIVE American Idol Tournament ranked match.
Superstar - 25 Gamerpoints - Achieve Diamond Status for five different songs.
The First of Many - 5 Gamerpoints - Achieve Platinum Status for one performance.
The Great American Songbook - 20 Gamerpoints - Sing all the songs on the disc once - full song only.
The Showman - 20 Gamerpoints - Complete a medley and receive Platinum Status.
Why Don't You Marry Him Then - 15 Gamerpoints - Achieve "Excellent" comments from Simon three times in a row during an American Idol tournament.
World Idol - 80 Gamerpoints - Win the full American Idol tournament at Expert difficulty level .
World Tour - 10 Gamerpoints - Play an Xbox LIVE American Idol Tournament match.