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Sam Wilkerson of White Reaper plays his guitar while performing at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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A pumped up crowd seen singing along to the performances at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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Tyler The Creator dances on stage while performing at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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Cam pumps up the crowd at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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Jake Wesley Rogers plays the piano for his performance during the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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OSTON engages with the audience while performing at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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Exhilarated festival attendees stand behind a gate at the Lollapalooza Music Festival at Grant Park in Chicago.
Amy Harris/Invision/AP
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Roddy Ricch performs on day two at the Lollapalooza Music Festival at Grant Park in Chicago.
Amy Harris/Invision/AP
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Steve Aoki performs in front of a vibrant crowd at the Lollapalooza Music Festival.
Amy Harris/Invision/AP
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Lunay smiles at his audience as he performs at the Lollapalooza Music Festival.
Amy Harris/Invision/AP