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Dave Grohl performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago. 

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The Foo Fighters perform at Wrigley Field, July 29, 2018, in Chicago.

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Audience members watch the Foo Fighters perform at Wrigley Field, July 29, 2018, in Chicago. 

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Dave Grohl, right, and Chris Shiflett perform with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago.

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Dave Grohl performs with members of the Foo Fighters at Wrigley Field Sunday, July 29, 2018, in Chicago.

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Audience members watch the Foo Fighters perform at Wrigley Field, July 29, 2018, in Chicago. 

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Dave Grohl performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago.

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Taylor Hawkins performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago.

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Dave Grohl performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago. 

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Pat Smear performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago. 

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Dave Grohl performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago.

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Dave Grohl performs with members of the Foo Fighters at Wrigley Field, July 29, 2018, in Chicago. 

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Members of the audience watch the Foo Fighters perform at Wrigley Field, July 29, 2018, in Chicago.