Dave Grohl is the kind of affable, down-to-earth rock star who you might not expect to indulge in grand gestures like, say, having a special throne built for him to sit in while performing. But that’s just the extravagant stage prop he unveiled on Saturday night at Washington, D.C.’s RFK Stadium, and it wasn’t just because Foo Fighters were celebrating their 20th anniversary. It was necessary: Three weeks ago during a concert in Gothenburg, Sweden, Grohl fell off the stage and broke his leg.
