Charli XCX's SOPHIE-produced Vroom Vroom EP is out today on Charli's own label of the same; listen to the whole thing below + buy it on iTunes here. In related news, you can catch Charli XCX + SOPHIE performing together live for the first time at the official Gorilla vs. Bear x Hype Machine's Hype Hotel SXSW showcase next month. Full lineup coming soon.