Sing Sing, Seattle's reigning hipster dance party, is celebrating its first birthday with sets from French-Canadian electrofunkers Chromeo, Chicago party killers Flosstradamus, and resident jocks Fourcolorzack and Pretty Titty. While the DJs will drop jam after jam at breakneck pace, Chromeo is the highlight. The duo's sophomore album, Fancy Footwork, is a perfect sequel to their neon-lit debut, full of lover-man lines and jheri-curled joints as suitable for breakdancing as for romancing. (War Room, 722 E Pike St, 328-7666. 9 pm, $10 adv/$12 DOS, 21+.)