In no particular order:
The White Stripes
The Raconteurs
The Strokes
Red Hot Chilli Peppers
Kasabian
Arctic Monkeys
Hard-Fi
The Charlatans
The Kooks
The Zutons
The Feeling
Razorlight
The Cribs
Maximo Park
Paul Weller
The Chemical Brothers
Kaiserchiefs
David Gray
The Coral
Babyshambles
The Libertines
Garbage
Richard Ashcroft
Turin Brakes
The Beastie Boys
Gomez
Coldplay
Radiohead
The Flaming Lips
Oasis
Ian Brown
Primal Scream
Doves
Manic Street Preachers
Electric Soft Parade
Morissey
The Streets
Shed Seven
Brian Wilson
Ocean Colour Scene
The Who
Jet
Beck
Sigor Ros
The Thrills
The Killers
U2
Starsailor
The Cardigans
The Hives
Stereo MC's
De La Soul
Inspiral Carpets
Echo and the Bunneymen
Toploader
The Darkness
Bloc Party
The Bravery
The Prodigy
Leftfield
Embrace
The Infadels
The Music
Grand Drive
British Sea Power
Moby
New Order
The Bees
Boy Kill Boy
The Automatic
Royskopp
Van Morrison
Franz Ferdinand
Snow Patrol
Interpol
Jools Holland
New York Dolls
Magic Numbers
Basement Jaxx
Foo Fighters
El Presidente
Thirteen Senses
I'm sure there are loads of other bands i've seen but I can't think of any more at the moment. I love going to festivals, I went to Oxegen in Ireland last week, and always go to Glastonbury when its on as I only live an hour down the road from it
The White Stripes
The Raconteurs
The Strokes
Red Hot Chilli Peppers
Kasabian
Arctic Monkeys
Hard-Fi
The Charlatans
The Kooks
The Zutons
The Feeling
Razorlight
The Cribs
Maximo Park
Paul Weller
The Chemical Brothers
Kaiserchiefs
David Gray
The Coral
Babyshambles
The Libertines
Garbage
Richard Ashcroft
Turin Brakes
The Beastie Boys
Gomez
Coldplay
Radiohead
The Flaming Lips
Oasis
Ian Brown
Primal Scream
Doves
Manic Street Preachers
Electric Soft Parade
Morissey
The Streets
Shed Seven
Brian Wilson
Ocean Colour Scene
The Who
Jet
Beck
Sigor Ros
The Thrills
The Killers
U2
Starsailor
The Cardigans
The Hives
Stereo MC's
De La Soul
Inspiral Carpets
Echo and the Bunneymen
Toploader
The Darkness
Bloc Party
The Bravery
The Prodigy
Leftfield
Embrace
The Infadels
The Music
Grand Drive
British Sea Power
Moby
New Order
The Bees
Boy Kill Boy
The Automatic
Royskopp
Van Morrison
Franz Ferdinand
Snow Patrol
Interpol
Jools Holland
New York Dolls
Magic Numbers
Basement Jaxx
Foo Fighters
El Presidente
Thirteen Senses
I'm sure there are loads of other bands i've seen but I can't think of any more at the moment. I love going to festivals, I went to Oxegen in Ireland last week, and always go to Glastonbury when its on as I only live an hour down the road from it