6. Charli XCX, 'SUCKER'
Charli XCX is the pop star 2014 was waiting for: a badass songwriting savant who's the most fun girl in any room she steps into. The 22-year-old Brit came into her own with SUCKER, a middle-finger-waving teenage riot packed into 13 punky gems. It's a dance party, a mosh pit and a feminist rally – Charli's definitely in charge.