The nom de pop of Charlotte Aitchison, Charli XCX mixes influences and inspirations as diverse as the Spice Girls, Kate Bush, Lil Wayne, Quentin Tarantino, and Twin Peaks into moody yet catchy pop. She began making music at an early age while growing up in Hertfordshire, England, and released a pair of singles, 2008's "Emelline/Art Bitch" and "!Franchesckaar!," while still in her teens. She also recorded her first album that year, which she sold at concerts although it never saw an official release. Three years later she returned with a slew of new material, including the sing...