I’ve seen:

30 Seconds To Mars
Aiden
Alexisonfire (x2)
All Time Low
Anti-Flag
Armor For Sleep
Avenged Sevenfold
Billy Talent
Black Stone Cherry
Black Tide
Blink-182
Bloodsimple
ChickenHawk
Duff McKagan’s Loaded
Envy Of The State
Envy On The Coast
Every Time I Die
Escape The Fate
Fei Comodo
Four Year Strong
Gallows
Glassjaw
Gojira
Heaven’s Basement
Hey Monday
Hollywood Undead
In Flames (x2)
InMe (x2)
Innerpartysystem
Killswitch Engage
Madina Lake
Maylene and the Sons of Disaster
Mexicolas
Papa Roach
Paramore
Poison the Well
Reuben
Rise Against (x2)
Silverstein
Sonic Syndicate (x2)
State Radio
Strike Anywhere
Sum 41
Symphony Cult
Taking Back Sunday
The Blackout
The Color Fred
The Ghost of a Thousand
The Used
Thursday
Underoath
Valour
VersaEmerge
Whole Wheat Bread
You Me At Six

Total: 60.

So far so good =)