Full list of all 49 Band Hero achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Completed 50 of the Career Challenges at Platinum or Diamond
Grabbed 555 Career Stars
Cranked it to 11
Played through all the Band Hero songs once
25 online Pro Face-Off matches completed
Played Do or Die online
Found the pot of gold
Found Secret Notes 16 (Ocean Avenue)
Found Secret Notes 3 (Honky Tonk Women)
3/4 of the way there
Found Secret Notes 4 (Take What You Take)
Found Secret Notes 12 (I Heard it Through the Grapevine)
Found Secret Notes 15 (So Yesterday)
Found Secret Notes 19 (Kung Fu Fighting)
Found Secret Notes 14 (YMCA)
Found Secret Notes 8 (Bring Me to Life)
Been around the block
Grabbed 333 Career Stars
We are one
Scored over 1,000,000 as a band
Rocked a song as 4 of the same instrument
Found Secret Notes 17 (Dirty Little Secret)
1/2 of the way there
Found Secret Notes 1 (Beautiful Soul)
Found Secret Notes 5 (Like Whoa)
Found Secret Notes 2 (Black Cat)
My 1st hit
Ready for my close up
Completed a challenge with each instrument at Gold or better
Another notch on the belt
Met all of the Stars
1/4 of the way there
Found Secret Notes 11 (Don't Speak)
Grabbed 111 Career Stars
Found Secret Notes 6 (She Will Be Loved)
Found Secret Notes 10 (Love is a Battlefield)
Earned some ice
FC'd it
Earned some bling
Found Secret Notes 13 (Wannabe)
Found Secret Notes 9 (Lips of an Angel)
Scored over 10,000 in Star Power
Found Secret Notes 7 (Let's Dance)
Found Secret Notes 18 (Oh, Pretty Woman)
Rocked a gig
Rocked out as an Avatar
Host with the most
Completed a Band Moment successfully
Got to know the new hotness