Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans gather at the front gate waiting the the music fest to reopen after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

A concertgoer bodysurfs during a performance at Perry's stage at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

A concertgoer bodysurfs during a performance by Chief Keef at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

John Paul and Mary LeVac of Windsor, Canada, walk together inside the same t-shirt at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

John Paul and Mary LeVac of Windsor, Canada, walk together inside the same t-shirt at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

A concertgoer listens to Chief Keef perform at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Members of Chief Keef perform at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Members of Chief Keef perform at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Members of Chief Keef perform at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Dessa of the band Doomtree performs at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Andrew Bowen of Austin, TX, takes pictures with his iPhone at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Artist Danielle Nicole of Los Angeles, CA, paints a mural at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

A woman sits alone on a red blanket at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Concertgoers dance to the music at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Concertgoers with VIP passes watch Chief Keef perform at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Xavier Hetrick, 2, shields himself from the sun with an umbrella at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

A concertgoer jumps over a bale of hay at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Nestor Hernandez eats a pork sandwich at Lollapalooza Saturday, August 4, 2012, in Chicago. | John J. Kim~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

General features around Lollapalooza Friday, August 3, 2012 I Scott Stewart~Sun-Times

Dancing to the music of Passion Pit, at Lollapalooza, Friday, August 3, 2012 I Scott Stewart~Sun-Times

General features around Lollapalooza Day No.1 Friday, August 3, 2012. I Scott Stewart~Sun-Times

General features around Lollapalooza Day No.1 Friday, August 3, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Music fans waited to hear Passion Pit, Friday August 3, 2012. I Scott Stewart~Sun-Times

Passion Pit rocks the Lollapalooza crowd Friday evening, August 3, 2012. I Scott Stewart~Sun-Times

Music fans gather around one of two main stages at Lollapalooza, Friday, August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbbourne rocks the Lollapalozza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

A Lollapalooza fan is helped back to his feet after falling in the mud Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Columbus Drive was packed with music lovers at Lollapalooza Day No.1 Friday August 3, 2012. I Scott Stewart~Sun-Times

A woman wears bandana before the Passion Pit concert, Friday, August 3, 2012. I Scott Stewart~Sun-Times

Music fans gather around one of two main stages at Lollapalooza, Friday, August 3, 2012. I Scott Stewart~Sun-Times

Music fans enjoy the warm August weather at Lollapalooza, Friday, August 3, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans walk through the rain filled field after the storm Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans walk through the rain filled field after the storm Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans sit in the mud to enjoy the rest of the concert Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

A Lollapalooza fan climbs a city street light before the front gates opened, the street light fell with the music fan on top of it. August 4, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

Large crowds enter the Lollapalooza music fest during Day No.1 Friday, August 3, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza, Frank Ocean, in concert on the Google Play Stage Saturday evening. August 4, 2012. I Scott Stewart~Sun-Times

An American flag is carried on the back of a music fan during the concert at Lollapalooza, Friday August 3, 2012. I Scott Stewart~Sun-Times

Black Sabbath with Ozzy Osbourne rocks the Lollapalooza crowd Friday night. August 3, 2012. I Scott Stewart~Sun-Times

A man covered in green enjoys the music of Passion Pit at Lollapalooza. Friday August 3, 2012. I Scott Stewart~Sun-Times

Music fans go wild during the Passion Pit concert at Lollapalooza Friday, August 3, 2012. I Scott Stewart~Sun-Times

Large crowds mill around between music concerts at Lollapalooza Day No.1 Friday August 3, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans gather at the front gate after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Seagulls fill the air while looking for food between concerts at Lollapalooza. Friday August 3, 2012. I Scott Stewart~Sun-Times

Mannequins dressed with Lollapalooza items for sale during the three day concert, Friday, August 3, 2012 I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapaloozza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Chicago skyline at dusk while Black Sabbath and Ozzy Osbourne perform at Lollapalooza, Friday August 3, 2012. I Scott Stewart~Sun-Times

A man carrries signage that says, "It's A Trip," while moving to the next concert at Lollapalooza Friday, August 3, 2012. I Scott Stewart~Sun-Times

Music fans walk around Buckingham fountain with a large Lollapaloozza sign fills the backdrop. Friday August 3, 2012. I Scott Stewart~Sun-Times

Music fans walk around Buckingham fountain with a large Lollapaloza sign fills the backdrop Friday, August 3, 2012. I Scott Stewart~Sun-Times

Grant Park was turned into a large music venue during the three day Lollapalooza concert. Friday August 3, 2012. I Scott Stewart~Sun-Times

Music fans mill around Grant Park during the three day music festival. Friday August 3, 2012. I Scott Stewart~Sun-Times

Music fans mill around Grant Park during the three day music festival. Friday August 3, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon while music fans stand in a soaked field. August 4, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon while music fans stand in a soaked field. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans hold hands high before the main gates opened after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

S3 security helped keep music fans hydrated while waiting in the hot sun before each concert. Friday August 3, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans gather at the front gate waiting the the music fest to reopen after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans gather at the front gate waiting the the music fest to reopen after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

The Weeknd performs on the Red Bull stage Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans evacuate Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

A Lollapalooza fan climbs a city street light before the front gates opened, the street light fell with the music fan on top of it. August 4, 2012. I Scott Stewart~Sun-Times

A Chicago Policeman keeps watch on the large crowd at the front gate waiting for the music fest to reopen after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans, Grace Sweeney, Winnetka, Annie Scstakis, Willmette, and Liz Huppert, Willmette talk about the evacuation of Grant Park Saturday afternoon as a major storm approaches Chicago. August 4, 2012. I Scott Stewart~Sun-Times

Lollapalooza fans gather at the front gate waiting the the music fest to reopen after the evacuation of the music fest Saturday afternoon. August 4, 2012. I Scott Stewart~Sun-Times