Maestro
Achieve Diamond Status for every song on the disc
175 ✓ September 8th, 2008
Dedication
Score 50 million points (cumulative in any mode)
100 ✓ October 28th, 2008
Girl’s Best Friend
Get a perfect score throughout a full American Idol tournament
100 ✓ September 6th, 2008
World Idol
Win the full American Idol tournament at Expert difficulty level
80 ✓ September 5th, 2008
Legend
Achieve Diamond Status for twenty different songs
75 ✓ September 6th, 2008
American Idol
Win the full American Idol tournament at any difficulty level
50 ✓ September 5th, 2008
Hero
Achieve Diamond Status for ten different songs
50 ✓ September 6th, 2008
Million Seller
Achieve Platinum Status for every song on the disc
50 ✓ September 6th, 2008
It Didn't Take That Long
Score 10 million points (cumulative in any mode)
50 ✓ September 8th, 2008
American Sensation
Win 20 American Idol single player tournaments
30 ✓ September 11th, 2008
Superstar
Achieve Diamond Status for five different songs
25 ✓ September 6th, 2008
The Showman
Complete a medley and receive Platinum Status
20 ✓ September 6th, 2008
The Great American Songbook
Sing all the songs on the disc once - full song only
20 ✓ September 6th, 2008
It Sounds Like a Lot
Score 1 million points (cumulative in any mode)
20 ✓ September 5th, 2008
Ranked Grudge Match Winner
Win an Xbox LIVE Head-to-Head ranked match
15 ✓ September 13th, 2008
Ranked World Tour Winner
Win an Xbox LIVE American Idol Tournament ranked match
15 ✓ September 13th, 2008
Ranked Global Star Winner
Win an Xbox LIVE Arcade League ranked match
15 ✓ September 13th, 2008
Why Don't You Marry Him Then
Achieve "Excellent" comments from Simon three times in a row during an American Idol tournament
15 ✓ September 6th, 2008
Headbanger
Compete offline in a battle Head to Head game
10 ✓ September 5th, 2008
Premiership
Compete offline in an Arcade League game
10 ✓ September 5th, 2008
Just the Two of Us
Play an offline Co-op Duet
10 ✓ September 5th, 2008
Grudge Match
Play an Xbox LIVE Head-to-Head match
10 ✓ September 13th, 2008
World Tour
Play an Xbox LIVE American Idol Tournament match
10 ✓ September 13th, 2008
Global Star
Play an Xbox LIVE Arcade League match
10 ✓ September 13th, 2008
Megastar
Achieve Diamond Status for one song
10 ✓ September 6th, 2008
Inspiration
Achieve Gold Status for every song on the disc
10 ✓ September 6th, 2008
Golden Ticket
Pass the auditions phase in single player
10 ✓ September 4th, 2008
The First of Many
Achieve Platinum Status for one performance
5 ✓ September 5th, 2008