Few bands defined 2010 like New York girl/boy noise-pop duo Sleigh Bells. Residing in uber-trendy Brooklyn, championed by both the blogosphere and M.I.A. (who signed the pair to her NEET label), and oozing the sort of elegantly wasted glamour they would sell by the truckload if they could bottle it, Sleigh Bells have been one of the year's underground sensations.

Debut album "Treats" spent the majority of 2010 sending critics into raptures, and with good reason. Adding irresistible pop hooks to heavy guitar noise and hip-hop beats, "Treats" is a joyous, boundary-pushing, mainstream-bound triumph.

But a quick history of Sleigh Bells has you wondering how it could possibly work. The formula is quite simple: Take one metalhead who used to front hardcore punk bands, introduce him to a self-confessed Britney Spears wannabe pop star — and let the chemistry flow.