Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Vocal Pro (10 points): Complete all the lessons in Sing It Pro.
You've Got The Music In You! (30 points): Complete all High School Musical songs.
You Rock! (30 points): Complete all Camp Rock songs.
Best Of Both (30 points): Complete all Hannah Montana & Miley Cyrus songs.
Sing It Fanatic (50 points): Complete 50 songs.
Sing It uber-fan (100 points): Complete 100 songs.
Sing it Superstar (50 points): Complete every song in the tracklist in Solo mode.
Dynamic Duet (50 points): Complete every song in the tracklist in Duet mode
Bop To The Top (50 points): Get the top score on any song.
Show Time Double (10 points): Perform a gig with 2 players.
Show Time (10 points): Perform a solo gig.
Singing Without A Net (10 points): Complete a song in You're On Your Own mode.
Party Starter (10 points): Complete a song in Team Play mode.
In This Together (10 points): Complete a song in Duet mode.
Head To Head (10 points): Complete a song in Versus mode.
Natural Performer (50 points): Hit 75% of the notes of any song in You're On Your Own mode.
Perfect Team (100 points): Score over 1,000,000 in a duet.
You Got What It Takes (50 points): Score over 500,000 on 20 songs.
Hey! Big Scorer (100 points): Score over 750,000 on 20 songs.
Rackin' Up The Points (30 points): Score over 750,000 on 10 songs.
Top Billing (20 points): Score over 750,000 on any song in Solo mode.
Big Stake Battle (20 points): Score over 750,000 on any song in Versus mode
Beautiful Harmony (20 points): Score over 750,000 on any song in Duet mode.
You're a Professional! (100 points): Score over 1,000,000 on any song in Solo mode.
Pushin' It To The Limit (50 points): Hit a X4 multiplier.