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Hear Charli XCX's punk cover of "Shake It Off"

Singer Charli XCX performs onstage at ESPN the Party at WestWorld of Scottsdale on Jan. 30, 2015, in Scottsdale, Arizona.

Robin Marchant, Getty Images for ESPN

"Shake It Off" just got a punk-rock makeover thanks to Charli XCX.

The British singer stopped by BBC1's Live Lounge to lay down the track, originally off Taylor Swift's "1989."

The differences are clear: Charli's version has more attitude and more shouts, though the singer omits the "this sick beat" line. Possibly because it's trademarked now.

Check out Charli XCX's cover of "Shake It Off" below: