All the ones I know that I like. And yes I would go just for Hellogoodbye. My sister has never been to a real rock concert before (BSB) so I want to go with her. Or we might go to Chicago. She likes Red Hot Chili Peppers and Panic! at the Disco alot. I'd rather go to Lollapalooza anyway.
AFI
The Academy Is
Against Me!
Anti Flag
Armor For Sleep
The Casualties
Hellogoodbye
Joan Jett
Less Than Jake
Motion City Soundtrack
NOFX
Rise Against
Saves The Day
Senses Fail
Sum 41
Thursday
I did notice no Offspring this year and that disappointed me.