Dave Grohl

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The Foo Fighters' Dave Grohl performs from a throne of his own making, after breaking his leg during a show in Sweden. A specially designed gurney allowed Mr. Grohl's chair to extend onto a catwalk to get him closer to the crowd, sometimes with bandmates joining him. "There was no way I was canceling this concert," Mr. Grohl told the enthusiastic crowd. (Associated Press photographs)

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D.C. Foo Fighters' fans worried Dave Grohl might need to sit out the Independence Day festival, need not fret. "Can't [expletive] wait for the 4th!!! See you at home, DC," the band tweeted Monday. (ASsociated Press)

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Buffalo Bills quarterback Kyle Orton and Rock musician Dave Grohl. AP photos

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Hall of Fame Inductee of Nirvana, Dave Grohl speaks at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)

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Hall of Fame Inductee, Nirvana, Dave Grohl performs at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)

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Hall of Fame Inductee of Nirvana, Dave Grohl speaks at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)

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Paul McCartney, left, and Dave Grohl, accept the award for best rock song for “Cut Me Some Slack" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

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Krist Novoselic, left, and Dave Grohl arrive at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Paul McCartney, left, and Dave Grohl, accept the award for best rock song for “Cut Me Some Slack" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

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Paul McCartney, from left, Krist Novoselic and Pat Smear, partially obscured, listen as Dave Grohl, foreground, accepts the award for best rock song for “Cut Me Some Slack" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

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Paul McCartney, left, and Dave Grohl, right, accept the award for best rock song for “Cut Me Some Slack" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)