The Backstreet Boys’ luminous ballad “I Want It That Way” is almost indisputably the single greatest song to come out of the teenpop era, and if you’re still resisting its charms 15 years later, this is a pretty good morning to reconsider. Yesterday, during an in-store performance at Chicago’s Borderline Music, the British singer Charli XCX, who released her own album of pretty amazing pop songs just last month, busted out a charmingly low-key synthpop cover of the song. There’s nothing ironic about this particular cover; she’s radiating pure love the entire time. Also, I love how she handles the key change. Thanks to Stephanie for sending the cover in; check it out below.