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

World Idol (80 points)
Win the full American Idol tournament at Expert difficulty level .

Golden Ticket (10 points)
Pass the auditions phase in single player.

The Great American Songbook (20 points)
Sing all the songs on the disc once - full song only.

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

It Sounds Like a Lot (20 points)
Score 1 million points (cumulative in any mode).

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

Dedication (100 points)
Score 50 million points (cumulative in any mode).

Girl's Best Friend (100 points)
Get a perfect score throughout a full American Idol tournament.

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

Premiership (10 points)
Compete offline in an Arcade League game.

Just the Two of Us (10 points)
Play an offline Co-op Duet.

Grudge Match (10 points)
Play an Xbox LIVE Head-to-Head match.

World Tour (10 points)
Play an Xbox LIVE American Idol Tournament match.

Global Star (10 points)
Play an Xbox LIVE Arcade League match.

Ranked Grudge Match Winner (15 points)
Win an Xbox LIVE Head-to-Head ranked match.

Ranked World Tour Winner (15 points)
Win an Xbox LIVE American Idol Tournament ranked match.

Ranked Global Star Winner (15 points)
Win an Xbox LIVE Arcade League ranked match.

Maestro (175 points)
Achieve Diamond Status for every song on the disc.

Megastar (10 points)
Achieve Diamond Status for one song.

Hero (50 points)
Achieve Diamond Status for ten different songs.

Superstar (25 points)
Achieve Diamond Status for five different songs.

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

Legend (75 points)
Achieve Diamond Status for twenty different songs.

Inspiration (10 points)
Achieve Gold Status for every song on the disc.

The Showman (20 points)
Complete a medley and receive Platinum Status.

Why Don't You Marry Him Then (15 points)
Achieve "Excellent" comments from Simon three times in a row during an American Idol tournament.

The First of Many (5 points)
Achieve Platinum Status for one performance.