If indie rock were the Boy Scouts, Sleigh Bells would have a lot of merit badges, including: Co-ed Duo; From Brooklyn; Signed to M.I.A.'s Label; Improbable Backstory (he's formerly of hardcore band Poison the Well; she used to be a schoolteacher). Add to that a stunning debut stitched from overblown drum machines/samples, Derek Miller's looped-lightning guitar riffs and Alexis Krauss' playful and groovy vocals, which cross up Karen O and The Ting Tings' Katie White. Abrasive, effervescent and clever, Treats is an accomplishment indeed. Key tracks: "Rill Rill," "A/B Machines."