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