Charli XCX exists in the major-label pop universe these days, posing for photos at industry events with Sam Smith or Taylor Swift and showing up on the Grammy red carpet. But every once in a while, we get to see a tiny glimpse of her punk side — as when she covered Snuffed By The Yakuza’s “Allergic To Love,” or when she wore a tuxedo on that Grammy red carpet. In a recent visit to the BBC’s Live Lounge, she trotted that side out a bit as she knocked out a sneery, fast, electro-blipping cover of Swift’s world-conquering “Shake It Off.” The Charli XCX version of the song was really more mocking new-wave — like the Waitresses or Josie Cotton — than it was punk, but it’s still closer than people in Charli’s social circles usually come. Also, she left off the “this sick beat” part, which was wise. Watch below.

Charli’s very good album Sucker is out now on Asylum/Atlantic/Neon Gold.