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