If You complete the indicated task You'll get the allotted gamerscore.
Let's Get it STAR-ted (40) - Gain 200,000 total stars.
Two Cool (30) - Get "Cool" in every page for a song in Co-op mode.
Bang Bang! (30) - Earn a Big Bang rating in Co-op mode.
Party Monster (30) - Score points in all 40 Lips Party Classics songs.
Got My Style (30) - Sing 10 songs in Freestyle.
Heavy Medal (30) - Earn 1,500 total medals.
Recording Artist (20) - Record and view three songs with Performance Recording.
Party Animal (20) - Score points in 20 or more Lips Party Classics songs.
Party Starter (20) - Score points in 10 or more Lips Party Classics songs.
Unlock 80's Heartthrob
Earn a Big Bang rating and hit all gestures in the the song "I Think We're Alone Now".