Unlockables
     Complete  each  of  the  following  achievements below to get the
allotted gamerscore.

Unlockable:                     How to Unlock

The First of Many (5)           Achieve Platinum Status 
                                for one performance
                                
Global Star (10)                Play an Xbox LIVE Arcade League match

Golden Ticket (10)              Pass the auditions phase 
                                in single player
                                
Grudge Match (10)               Play an Xbox LIVE Head-to-Head match

Headbanger (10)                 Compete offline in a battle 
                                Head to Head game

Inspiration (10)                Achieve Gold Status for every song 
                                on the disc
                                
Just the Two of Us (10)         Play an offline Co-op Duet

Megastar (10)                   Achieve Diamond Status for one song

Premiership (10)                Compete offline in an Arcade League game

World Tour (10)                 Play an Xbox LIVE American Idol 
                                Tournament match
                                
Ranked Global Star Winner (15)  Win an Xbox LIVE Arcade League 
                                ranked match
                                
Ranked Grudge Match Winner (15) Win an Xbox LIVE Head-to-Head 
                                ranked match
                                
Ranked World Tour Winner (15)   Win an Xbox LIVE American Idol Tournament 
                                ranked match
                                
Why Don't You Marry 
Him Then (15)                   Achieve "Excellent" comments from Simon 
                                three times in a row during an American 
                                Idol tournament
                                
It Sounds Like a Lot (20)       Score 1 million points (cumulative 
                                in any mode)
The Great American 
Songbook (20)                   Sing all the songs on the disc once - 
                                full song only
                                
The Showman (20)                Complete a medley and receive 
                                Platinum Status
                                
Superstar (25)                  Achieve Diamond Status for five 
                                different songs

American Sensation (30)         Win 20 American Idol single player 
                                tournaments

American Idol (50)              Win the full American Idol tournament 
                                at any difficulty level

Hero (50)                       Achieve Diamond Status 
                                for ten different songs

It Didn't Take That Long (50)   Score 10 million points 
                                (cumulative in any mode)

Million Seller (50)             Achieve Platinum Status for every song 
                                on the disc

Legend (75)                     Achieve Diamond Status 
                                for twenty different songs

World Idol (80)                 Win the full American Idol tournament 
                                at Expert difficulty level
                                
Dedication (100)                Score 50 million points (cumulative 
                                in any mode)
                                
Girl's Best Friend (100)        Get a perfect score throughout 
                                a full American Idol tournament
                                
Maestro (175)                   Achieve Diamond Status for every song 
                                on the disc