If the music wasn't enuff, Perry is bringing back Mindfield where the entire festival grounds will become the game board for the text messaging "prankster and scavenger hunt" game.

Tickets are already on sale and you can catch all three days for $130 bucks. So you can see the following bands for a buck each.

Red Hot Chili Peppers
Kanye West
Manu Chao
Wilco
Death Cab For Cutie
The Raconteurs
The Flaming Lips
Ween
Queens of the Stone Age
The Shins
Common
Matisyahu
Ryan Adams
Umphrey's McGee
Sonic Youth
Thievery Corporation
Sleater-Kinney
Nickel Creek
Blues Traveler
Broken Social Scene
The New Pornographers
Iron & Wine
Poi Dog Pondering
The Secret Machines
Eels
Panic! At the Disco
The Disco Biscuits
Reverend Horton Heat
The Smoking Popes
Andrew Bird
Gnarls Barkley
Stars
Cursive
Blackalicious
Editors
Lyrics Born
Lady Sovereign
Calexico
Nada Surf
Feist
Aqualung
The Frames
The Hold Steady
The Go! Team
Mates of State
Pepper
Particle
The Redwalls
Mute Math
Wolfmother
Sparta
The Subways
Of Montreal
Blue October
Jeremy Enigk
Living Things
Sound Team
The M's
Hot Chip
The Benevento-Russo Duo
Matt Costa
The New Amsterdams
deadboy & the Elephantmen
Sybris
Anathallo
The Burden Brothers
What Made Milwaukee Famous
Manishevitz
Husky Rescue
The Towers of London
Ohmega Watts
Boy Kill Boy
Jim Noir
The Standard
Be Your Own Pet
Elvis Perkins
Trevor Hall
Midlake