Recently, I was hipped to a Swedish pop duo from a surprising source: London's Charli XCX. Back on May 8th she tweeted the following: "Check out the song i wrote for @iconapop... I LOVE IT," with a YouTube link. Being a fan of Charli's singles "Stay Away" and "Nuclear Seasons," I had to check it out. What I found was a different creature entirely. Whereas Charli XCX often sounds like a synthpop Siouxsie Sioux at age 19, this duo from Stockholm is tinsel-shiny and full of fire. While the song's shouty chorus has a certain playground-taunt quality, beware the insidious instrumental hook that owes an equal debt to Justice and the Deadmau5 School of Club Music... at least to these ears. Yes, it's a spiteful tune, but it's joyful in equal measure.