| Description | Effect |
|---|
| 1st Number One! (25) |
Perfect a song to get your first Diamond record! |
| 20000 Leagues Under the TV (10) |
Complete 5 offline League games. |
| A Dirty Dozen (20) |
Score 12 million points (cumulative in any mode). |
| An American Virtuoso (20) |
Prove your dominance by winning 5 Ranked Xbox LIVE American Idol tournaments. |
| Best Friends Forever (30) |
Achieve "Excellent" comments from Simon five times in a row during the American Idol Finals. |
| Blue Jeans and Pink Spandex (20) |
Complete a 5 Song Medley composed exclusively of 80's and Disco songs to Platinum rating. |
| Busting Heads the World Over (15) |
Demonstrate your prowess by winning your first Ranked or Player Xbox LIVE Head To Head match. |
| Change your Passion for Glory (15) |
Complete the song "Eye of the Tiger" while wearing the full Stars and Stripes Boxer outfit. |
| Combo King! (50) |
Pull off a Perfect Combo of 50 phrases in length. |
| Completely Ruined! (10) |
Earn 1 Diamond record in the Gothic Ruins at Hard or Expert difficulty. |
| Debut Album (10) |
Unlock and sing every song at least once! |
| Dive Right In (10) |
Earn 1 Diamond record in the Dive Bar at Hard or Expert difficulty. |
| Enough to Buy a Small Country (35) |
Achieve 100 Diamond performances. |
| Enough to Buy an Island (25) |
Achieve 50 Diamond performances. |
| Enter the Crooner (20) |
Complete a 5 Song Medley composed only of Ballad, Classics and Country songs to Platinum rating. |
| Expert Diamond (30) |
Score a Diamond Record on Expert. |
| Frankie Says... (10) |
Complete a duet of any 80's song with a male and female character dressed for the 80's! |
| Geology (20) |
Complete a 5 Song Medley composed only of Rock and Hard Rock songs to Platinum rating. |
| Going Global (10) |
Take on the World and play a Ranked or Player Xbox LIVE American Idol tournament. |
| Greatest Hits (75) |
Perfect every song on the disc and get a clean sweep of Diamond Records. |
| Hairspray (20) |
Complete a 5 Song Medley composed only of Pop and R&B songs to Platinum rating. |
| Hard Diamond (20) |
Score a Diamond Record on Hard. |
| Harmony in 'Dis Harmony (15) |
Achieve Diamond Status on a True Duet in Duet mode. |
| Head-Busting Virtuoso (20) |
Prove your dominance by winning 15 Ranked Xbox LIVE Head To Head matches. |
| Heading in the Right Direction (10) |
Complete 5 offline Head To Head games. |
| Idolized (10) |
Win 15 American Idol single player tournaments. |
| International Grudge (10) |
Take on the World and play a Ranked or Player Xbox LIVE Head To Head match. |
| Kelly Did It First (30) |
Win an American Idol tournament at Expert difficulty without ever being in the bottom group. |
| Ladies' Man, No Time to Talk (15) |
Complete the song "Stayin' Alive" while dressed like a 70's Disco King! |
| Leagues Ahead of the World (15) |
Demonstrate your prowess by winning your first Ranked or Player Xbox LIVE Arcade League. |
| Leagues Ahead Virtuoso (20) |
Prove your dominance by winning 5 Ranked Xbox LIVE Arcade League matches. |
| Legend to Be (50) |
Win the full, single player American Idol tournament at Expert difficulty. |
| Long Road to Stardom (35) |
Score 25 million points (cumulative in any mode). |
| Major Recording Artist (10) |
Earn 1 Diamond record in the Recording Studio at Hard or Expert difficulty. |
| Need a Bigger House (25) |
Achieve 200 Platinum or higher performances. |
| On the Guest List (10) |
Earn 1 Diamond record in the Nightclub at Hard or Expert difficulty. |
| Party Central (10) |
Compete offline in an American Idol Multi Player Contest. |
| Paula's Soulmate (20) |
Earn Platinum scores for 10 or more of Paula's favorite songs in a single American Idol competition. |
| Professional Singer (50) |
Get a Platinum ranking on a song with both lyrics and staff off. |
| Randy's Dog Pound (20) |
Earn Platinum scores for 10 or more of Randy's favorite songs in a single American Idol competition. |
| Ready for Stardom (10) |
Out-sing the competition to win your first full, single player American Idol tournament. |
| Simon's Star Signing (20) |
Earn Platinum scores for 10 or more of Simon's favorite songs in a single American Idol competition. |
| Spreading the News! (10) |
Earn 1 Diamond record in New York at Hard or Expert difficulty. |
| Taking on the World (10) |
Take on the World and play a Ranked or Player Xbox LIVE Arcade League. |
| The World's Greatest American (15) |
Demonstrate your prowess by winning your first Ranked or Player Xbox LIVE American Idol tournament. |
| Together Forever (20) |
Achieve Diamond Status on all True Duets on the game disc in Duet mode. |
| Video Killed the Karaoke Star (10) |
Earn 1 Diamond record in the Music Video at Hard or Expert difficulty. |
| Wearing Me Out (5) |
Completely customize a single character and use that character to sing a song. |
| When's the Game on? (10) |
Earn 1 Diamond record in the Stadium at Hard or Expert difficulty. |
| Young Man! (15) |
Complete Y.M.C.A. in duet mode while wearing the appropriate headwear. |
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