For many Foo Fighters fans, Dave Grohl was already rock royalty, but the frontman has just made his status official after returning to the stage on Saturday night (July 4) and sitting on a giant throne for the entire gig. But Grohl’s throne wasn't just an outlandish prop, it was really the only way the singer was going to be able to do the Washington D.C. gig as he recovers from a broken leg.

Dave GrohlDave Grohl returned to the stage on Saturday night.

The July 4th gig was not jut an Independence Day celebration, but it also marked the band’s 20th anniversary, something the injured Grohl was eager not to miss. The singer told the crowd he had designed the Game Of Thrones-esque chair, while ‘high as a kite’ on pain medication.

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“I said I’m not missing this show for the world,” Grohl added. “You build me that picture and we’ll play Washington DC..” Showing a clip of his nasty fall which happened last month in Sweden, Grohl asked fans, ”How many of you saw that on YouTube?” Before adding, “I hit the ground so hard. I dislocated my ankle and I broke my leg.”

For the special anniversary gig the band were joined by numerous support acts, including RDGLDGRN, Trombone Shorty, Joan Jett and the Blackhearts, Gary Clark Jr., Heart, LL Cool J, Buddy Guy and Trouble Funk.

The setlist including a mix of classic hits such as 'Everlong', 'Monkey Wrench', 'Learn to Fly', 'Big Me', 'All My Life', 'Breakout', 'Best of You’. As well as a cover of Queen and David Bowie's 'Under Pressure', and an appearance by Grohl's mother who joined the band onstage for 'For All The Cows’, from the band’s self-titled debut album.

More: Dave Grohl Breaks His Leg During Foo Fighters Concert But He Keeps On Rocking

Grohl’s injury, which happened on June 12th, caused the band to cancel their UK stadium concerts along with their headlining appearance at Glastonbury festival. But despite Grohl’s still broken leg the band (and presumably Dave’s throne) are now off on their North American tour which begins Monday evening in Camden, New Jersey.