In the past I’ve been a little lenient with Les Georges Leningrad: though they weren’t always quite spazzy or spunky enough for me, I forgave them because they claimed a ghost as a band member and sang in made-up languages. But the new Sangue Puro (Tomlab) is a record I can get behind 100 percent–it’s hysterical and evil, like a slumber party of 13-year-old girls sneaking out to TP the class nerd’s house. This Montreal trio of unreformed disco-noise enthusiasts makes itchy, frantic, almost flailing music: Singer Poney P either rushes through her words or hangs on to syllables past their sell-by date, eventually drowning them in haunted-sounding distortion. She’s always in the foreground, and her sickly yapping spreads germs all over the cutesy beats and curdled keyboards–the effect is simultaneously invigorating and nauseating, like woozy flu sex. K.K. Rampage and Grace Kulp open. a 9:30 PM, Empty Bottle, 1035 N. Western, 773-276-3600 or 866-468-3401, $10.