B*witched (lol)
REM (x3)
Foo Fighters (x3)
Paramore (x2)
Green Day
Kasier Cheifs (x2)
Muse (x2)
Radiohead (x2)
Bullet For My Valentine (x2)
Bring Me The Horizon (x3)
The Blackout
Fall Out Boy (x2)
Slipknot
Kings Of Leon
Maximo Park
Placebo
Florence + the Machine
The Killers
Kasabian
Crystal Castles
Jack's Mannequin
Passion Pit
New Found Glory (x2)
Little Boots
Amy Winehouse
Lily Allen
Manic Street Preachers
Metallica
You me at six
Kids in glass houses (x2)
Madina Lake
Alexisonfire
Funeral for a friend
Seasick Steve
The Ting Tings
Lostprophets (x2)
The Prodigy
Bloc Party (x2)
Yeah Yeah Yeahs
Vampire Weekend
The Cribs
The Subways
Dizzee Rascal
Blood Red Shoes (x2)
The Used
Billy Talent
The Smapshing Pumpkins
Hadouken!
Does it offend you yeah
Enter Shikari
Jimmy Eat World
The Strokes
Red Hot Chilli Peppers (x2)
Biffy Clyro
We Are Scientists
Foals
CSS
Editors
The Fratellis
Fightstar
Pink
They aren't in any particular order and there might more, I can't remember some stuff I've seen at festivals.
Coming up, Kids In Glass Houses, Green Day, Paramore