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Jack White performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Jack White performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Jack White performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Fans wait for Jack White to perform Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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A man climbs a pole to watch Lil Uzi Vert on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Lil Uzi Vert performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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People cheer for Lil Uzi Vert on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd watches Lil Uzi Vert perform Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Lil Uzi Vert performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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A trash can is surfed through the crowd during Lil Uzi Vert on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd watches Lil Uzi Vert perform Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Gucci Mane performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd dances to Gucci Mane on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Gucci Mane performs Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd dances to Gucci Mane on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd dances to Gucci Mane on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd dances to Gucci Mane on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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The crowd dances to Gucci Mane on Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Festivalgoers find their way Sunday, Aug. 5, 2018 at Lollapalooza in Grant Park.

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Knox Fortune performs on day four of Lollapalooza Sunday, August 5, 2018, at Grant Park in Chicago.

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Knox Fortune performs on day four of Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Knox Fortune performs on day four of Lollapalooza Sunday, August 5, 2018, at Grant Park in Chicago.

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People spray festival goers with water during Herobust's set on a hot day four of Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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People spray festival goers with water during Herobust's set on a hot day four of Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Zheni Stoyanova, 28, sits on the shoulders of Daniel Garcia, 22, during Herobust's set on a hot day four of Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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People sit in the shade on a hot day at Lollapalooza on Aug. 5, 2018, at Grant Park in Chicago.

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Durand Jones performs with his band Durand Jones & The Indications at Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Durand Jones & The Indications performs at Lollapalooza Sunday, August 5, 2018, at Grant Park in Chicago.

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Festival goers watch Durand Jones & The Indications perform at Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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A festivalgoer uses a handkerchief to keep dust out of her face at Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Durand Jones & The Indications performs at Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Workers fill up water containers for festival goers on a hot day four of Lollapalooza Sunday, Aug. 5, 2018, at Grant Park in Chicago.

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Festivalgoers stand in front of large fans on a hot day four of Lollapalooza Sunday, August 5, 2018, at Grant Park in Chicago.

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John Arey, 16, pours water on his head on a hot day at Lollapalooza on Aug. 5, 2018, at Grant Park in Chicago.

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Abel Makkonen Tesfaye, known as The Weeknd, performs at Lollapalooza on Aug. 4, 2018, in Chicago.

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Fans watch The Weeknd perform at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Abel Makkonen Tesfaye, known as The Weeknd, performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Fans watch The Weeknd perform at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Annie Clark, also known as St. Vincent, performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Annie Clark, also known as St. Vincent, left, performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Annie Clark, also known as St. Vincent, performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Annie Erin Clark, also known as St. Vincent, performs at Lollapalooza on Aug. 4, 2018, in Chicago.

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Daniel Caesar performs on the American Eagle stage, Saturday, August 4, 2018.

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Daniel Caesar performs on the American Eagle stage, Saturday, August 4, 2018.

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Lollapalooza staff member Dave Rosko shoots water at fest attendees, Saturday, Aug. 4, 2018.

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LL Cool J performs on the Bud Light stage, Saturday, Aug. 4, 2018.

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Carly Rae Jepsen performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Carly Rae Jepsen performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Alex McCrea and Matt McMorris, both of Los Angeles, dance to Carly Rae Jepsen at Lollapalooza on Aug. 4, 2018. McMorris made a shirt especially for Jepsen's set.

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Grace Weber performs on the BMI stage, Saturday, Aug., 2018.

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Grace Weber performs on the BMI stage, Saturday, August 4, 2018. (Kristan Lieb/For the Chicago Tribune) — Kristan Lieb / Chicago Tribune, Aug. 4, 2018

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Festivalgoers dance to electronic dance music at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Caroline Higney wears sunglasses while watching Sir Sly at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Samuel Lewis of West Fargo, ND, watches Sir Sly at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Li Saumet of Bomba Estereo performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Eli Carrano, Ashley Ptak and Adriana Gutowski dance on a stage that Asics created to provide boomerangs for Lollapalooza attendees. Saturday, August 4, 2018.

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Li Saumet of Bomba Estereo performs at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Performer Iris May poses for a photo with fest attendees, Saturday, August 4, 2018.

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Festivalgoers dance to the music of Bomba Estereo at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Festivalgoers climb on scaffolding while watching Sir Sly at Lollapalooza Saturday, Aug. 4, 2018, in Chicago.

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Matt Berninger of The National performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Fans watch The National perform at Lollapalooza on Aug. 3, 2018, in Chicago.

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Matt Berninger of The National performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Emily Gerdes, right, reacts as Post Malone takes the stage at Lollapalooza on Aug. 3, 2018, in Chicago.

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Post Malone performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Fans sing to the music of Post Malone at Lollapalooza on Aug. 3, 2018, in Chicago.

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Post Malone performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Chaney Lehr holds her phone, whose case features an image of Post Malone, at Lollapalooza on Aug. 3, 2018, in Chicago.

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A couple rest before the Post Malone concert at Lollapalooza on Aug. 3, 2018, in Chicago.

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People rest before the Post Malone concert at Lollapalooza on Aug. 3, 2018, in Chicago.

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Fans walk at Lollapalooza on Aug. 3, 2018, in Chicago.

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Festival goers pose for photographs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Greta Van Fleet performs on the American Eagle stage on Aug. 3, 2018.

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Greta Van Fleet performs on the American Eagle stage on Aug. 3, 2018.

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A fan reaches for Greta Van Fleet as the band performs on the American Eagle stage on Aug. 3, 2018.

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Greta Van Fleet performs on the American Eagle stage on Aug. 3, 2018.

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Greta Van Fleet performs on the American Eagle stage on Aug. 3, 2018.

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Lizzo, center, performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Lizzo performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Lizzo, center, performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Lizzo, center, performs at Lollapalooza on Aug. 3, 2018, in Chicago.

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Festivalgoers at Lollapalooza on Aug. 3, 2018, in Chicago.

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A festivalgoer holds a cutout of musician Bruno Mars at Lollapalooza on Aug. 3, 2018, in Chicago.

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Festivalgoers cool off in front of mist fans at Lollapalooza on Aug. 3, 2018, in Chicago.

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Workers pour water into backpack pouches at Lollapalooza on Aug. 3, 2018, in Chicago.

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Tyler, the Creator performs on the Grant Park stage on Aug. 3, 2018.

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Tyler, the Creator performs on the Grant Park stage on Aug. 3, 2018.

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Police officers are posted in front of an information display at Lollapalooza on Aug. 3, 2018, in Chicago.

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Chicago artist Taylor Bennett and his band perform at Perry's stage on Aug.t 3, 2018.

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Chicago artist Taylor Bennett and his band perform at Perry's stage on Aug. 3, 2018.

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Fans get hyped up to see Taylor Bennett perform on Perry's stage on Aug. 3, 2018.

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Chicago rapper Twista joins Taylor Bennett and his band onstage on Aug. 3, 2018.

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Chicago artist Taylor Bennett and his band perform at Perry's stage on Aug. 3, 2018.

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Chicago artist Taylor Bennett and his band perform at Perry's stage on Aug. 3, 2018.

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Paulina Mendez of Toledo, Ohio, dances as Goldfish performs at Perry's stage at Lollapalooza on Aug. 3, 2018.

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Fans watch Goldfish perform at Perry's stage at Lollapalooza on Aug. 3, 2018.

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Melbourne, Australia-based artist Alex Lahey performs on the Grant Park stage Aug. 3, 2018.

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Camila Cabello performs for the first time at Lollapalooza on Aug. 2, 2018.

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Camila Cabello performs for the first time at Lollapalooza on Aug. 2, 2018.

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Fans enjoy Camila Cabello performing for the first time at Lollapalooza on Aug. 2, 2018.