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Early Bird tickets for Lollapalooza 2013 went sale Tuesday morning. 

The annual festival, held in Chicago, Ill., will take place the first weekend of August 2013.

iHeartRadio had the chance to take a peek at this year's line-up, and let us warn you: you will regret it if you don't get tickets for this! The lineup is sick, and what better way to spend a sweaty weekend in August than with thousands of your equally sweaty friends enjoying music from your favorite bands?


(Hint, if the Brazil and Chile lineups are any indication... you don't wanna miss this!)

Are you excited for Lolla 2013? Comment below!