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