Charli XCX was on the A.V. Club's Undercover series, which invites artists to come into the studio to record a cover of their choosing from a pre-selected list of songs. The British songstress chose to cover the Backstreet Boys pop mega-hit, "I Want It That Way." Forgoing her normal electronic dance pop, Charli instead chose to make the song a slow, breathy, electronica ballad. Not so dancey, but its got some good vibes.
Source: A.V. Club