There was a petition on the official site...
AND IT WORKED
BACKSTREET BOYS ARE IN GH3!!!!!!!
Heres a leaked screenshot of "I want it that way"s notechart
Apparently they thought it would be too easy to 100% , so they decided to add on the hardest solo in guitar hero history to the end of the song to make it interesting :O
Also confirmed is Soulja boy and heres his note chart:
Again , they thought it was too easy so they made some buttons for everyone to push
The pack consists of
Backstreet boys - I want it that way
Soulja boy - Crank that
Panic! at the disco - Gay buttsecks (In the Ostrich factorys bathroom)