Chicago is going to get loud this summer with the sounds from the world's most famous bands, solo performers and DJs. In its 21st year, Lollapalooza is taking over Grant Park for another spectacle of music, art and fun activities. The lineup for the main stage is massive: Red Hot Chili Peppers, The Black Keys, Black Sabbath and Jack White will all rock the crowd with a special revival performance from At The Drive-In!

Perry's Stage, which started as a small electronic music stage with mostly unheard of producers and DJs, has expanded this year to include over 20 of the world's premier beatsmiths and bass-masters. Check out the full lineup below.

Get your Lollapalooza Tickets before it's too late!

Lollapalooza 2012 Lineup
The Red Hot Chili Peppers
Jack White
Black Sabbath
The Black Keys
Florence + The Machine
At the Drive-In
Bassnectar
Avicii
The Shins
Justice
Passion Pit
Kaskade
The Weeknd
Sigur Ros
Bloc Party
Calvin Harris
Miike Snow
The Afghan Whigs
M83 / Franz Ferdinand
Frank Ocean
Nero
J. Cole
Knife Party
Childish Gambino
Delta Spirit
Santigold
Metric
Zeds Dead
The Temper Trap
Wale
Big Gigantic
Die Antwoord
Dawes
Tune-Yards
Skream & Benga
The Head & the Heart
The Big Pink
Twin Shadow
The Tallest Man on Earth
Toro Y Moi
Little Dragon
Dr. Dog
Of Monsters And Men
Gary Clark Jr
Alabama Shakes
The Gaslight Anthem
SBTRKT
Amadou & Mariam
Porter Robinson
The Walkmen
Tame Impala
Sub Focus
Band of Skulls
JJ Grey & Mofro
Madeon
Neon Indian
Zedd
Dum Dum Girls
Paper Diamond
Washed Out
Aloe Blacc
Trampled by Turtles
Bear in Heaven
Blind Pilot
Chairlift
The Black Angels
Yellow Ostrich
GIVERS
Polica
Bombay Bicycle Club
Sharon Van Etten
White Rabbits
Doomtree
Totally Enormous Extinct Dinosaurs
Macklemore & Ryan Lewis
The Devil Makes Three
Oberhofer
Star Slinger
The War on Drugs
Michael Kiwanuka
O RAPPA
Bowerbirds
Orchard Lounge
Mona
The Growlers
Hey Rosetta!
Jeff the Brotherhood
Anamanaguchi
First Aid Kit
Wax
Fidlar
JC Brooks & The Uptown Sound
Milo Greene
Los Jaivas
Kopecky Family Band
The Jezabels
Nadastrom
LP
DJ Nihal
Yuna
The White Panda
Walk Off The Earth
Animal Kingdom
DEV
SALVA
The Sheepdogs
The Dunwells
DJ Mel
Empires
Kevin Devine
Dry the River
Helena
Haley Reinhart
Imaginary Cities
Overdoz
Ambassadors
DJ Zebo
thenewno2
Moon Taxi
Chancellor Warhol
Laura Warshauer
Red Oblivion
Kid Color

Buy Tickets for Lollapalooza 2012

Curious what else is on the radar? Check out our 2012 Music Festivals Guide!