AlunaGeorge is a young London-based pop duo that does an excellent job of bending the sonics of American R&B into something refreshing, modern, and a little bit odd. There are blurred vocals, soggy synths, and a bouncing-ball rhythm track from George Reid, the producer half of the duo. But Aluna Francis's singing blends girly tones with the sort of sass you might expect from someone much older than her 24 years.