Lollapalooza has been one of the world's most influential and beloved summer music events since 1991. For its 25th anniversary, it's rocking harder than ever in Chicago's Grant Park, with a lineup including J. Cole, Radiohead, Future, LCD Soundsystem, Major Lazer, and more. We're teaming up with Lollapalooza and Society6 to send one lucky winner and a friend to the party. You'll get the rock-star treatment with a $1,000 flight credit to Chi-town, two four-day passes to Lollapalooza for July 28 to 31, and $500 in music-fest essentials — T-shirts, towels, tanks, totes, you name it — from Society6. Ready to holla at Lolla? Enter to win now! *NO PURCHASE NECESSARY. Open to legal residents of the 48 contiguous United States (excluding Rhode Island), 18 years or older and over the age of majority in jurisdiction of residence at time of entry. Ends 6/17/16 at 11:59 p.m. ET. For Official Rules, click here. Void where prohibited.