Lollapalooza has a little something for everybody. Day One of the annual Chicago festival, being held Aug. 2-4 in Grant Park, closed with four can't miss acts all playing at the same time on different stages.
"I'm playing against the Killers, Lana Del Rey and Nine Inch Nails, so we'll see who's left at my stage," Perry's stage headliner Aoki told VIBE backstage. Aoki's set was packed, as were all the crowds in front of the other stages.
Check out photos of Day One of Lollapalooza 2013, which also included sets from rappers Theophilus London and Chance the Rapper, plus New Order, Icona Pop, Disclosure, Ghost B.C. and more.
Photos vis Getty Images and Lollapalooza