Watch Charli XCX Join the Strokes for “Take It Or Leave It” at Outsid…

Just a few weeks after their respective new albums dropped on the same day, Charli xcx made an appearance during the Strokes’ Saturday headlining set at Outside Lands in San Francisco. She joined the band to perform their 2001 track “Take It Or Leave It.” Watch it go down below.

“We’ve got a special little guest; a big guest. Well, a superstar,” Julian Casablancas said onstage…