Here is the full list of all 50 Guitar Hero: World Tour achievements worth 1,000 gamerscore.
You performed as a Vocalist
You completed a song solo
You performed as a Drummer
You completed a gig
You created a male band member
You performed as every instrument at least once
Get the highest score in the band as the lead or bass guitar (4 player band)
You completed a song in a band
You uploaded a song to GHTunes
You completed Career on medium. Have you tried hard yet?
You completed Career on easy. Have you tried medium yet?
You completed a solo career
You rocked out as Jimi Hendrix
You completed the majority of the gigs. Just a few more to go.
You downloaded a few songs from GHTunes
You performed as a Guitarist
Complete a tutorial
Complete an Xbox LIVE 2 v 2 Pro Face-Off match (win or lose)
Complete an Xbox LIVE Battle Mode match win or lose
Complete an Xbox LIVE Band v Band match (win or lose)
All band members get a 50 note streak at the same time (4 player band)
Earn $1,000,000 in lifetime earnings
Complete a band career (any difficulty)
100% a song as a band (4 player band)
100% a song as a band, hard or expert only (4 player band)
Complete a Career on hard (Band or Solo)
Complete a Career on expert (Band or Solo)
Complete all instrument careers - any difficulty (Band or Solo)
Create a custom tattoo
Create your own custom drums
Create your own band logo
Create a female band member
Rock out as Ozzy Osbourne in any venue
Rock out as Hayley Williams in any venue
Rock out as Ted Nugent in any venue
Rock out as Travis Barker in any venue
Rock out as Billy Corgan in any venue
Rock out as Zakk Wylde in any venue
Rock out as the Rockubot in any venue
Rock out as the Skeleton in any venue
Get the highest score in the band as the vocalist (4 player band)
All band members use star power at the same time (4 player band)
All band members earn an 8x multiplier at the same time (4 player band)
Unlock all of the guitars
Score 222,222 or higher on the song Satch Boogie as the Lead Guitarist (Solo)
Score 222,222 or higher on the song Assassin as a Drummer (Solo)
Score 123,450 or higher on the song Beat It as a Vocalist (Solo)
Score 444,444 or higher on the song Schism in a band (4 player band)
Score 444,444 or higher on the song Trapped Under Ice (4 player band)