When Sleigh Bells performed at last year's CMJ festival, they did more than just impress new fans with their experimental noise pop. They also caught the ear of M.I.A., who signed the Brooklyn boy-girl duo to her label N.E.E.T. this spring. Next Tuesday Sleigh Bells drop their first full-length after months of courting electro-pop heads with a handful of singles. "Tell 'Em," the first track from the soon-to-be-released Treats, shakes with relentless gut-busting beats and vocalist Alexis Krauss' icy, girly stutter. Advance tickets for tonight's show are sold out, but a limited number of tickets will be available at the Coco 66 box office at 10pm.