This topic is a compilation of all rumored and suspected bands and bands/songs that have been confirmed outside of a press release
Rumored bands , some have their rumored song too
AC/DC
Led zeppelin
Sepultura
Megadeth - Washington is next!
Dick dale - Nitro
Blink 182 - Dumpweed
The killers - When you were young
Santana - Black magic woman
Drist - Fallen
Nightwish - Dark chest of wonders
Korn
Trivium
Atreyu
Evanessence
Flyleaf
HELLYEAH
My chemical romance
Pantera - Revolution is my name
Jerry C - Canon rock
Ozzy osbourne
Cradle of filth
Killswitch engage
The clash
Senses fail
Judas priest
Dethklok
Deftones
Daniel lioneye
In flames - This life
Shadows fall
Buckethead
Marilyn manson
Mindless self indulgence
Black label society
Joe satriani
Ram jam - Black betty
Soundgarden - My wave
Lostprophets - Everyday combat
Confirmed with reliable sources that just aren't press releases from GH3:Hammerfall - hearts on fire
Matchbook romance - monsters
Lions - Metal heavy lady
Poison - Talk dirty to me
Bret Michaels band - Go that far
The sleeping