You heard it here first, folks. Unsigned quirk-rock geniuses Clap Your Hands Say Yeah — who played a pretty swell show with equally quirky Aussie outfit Architecture in Helsinki at NYC’s Central Park Summerstage last night — will be headlining a special New Year’s Eve concert at Manhattan’s Hammerstein Ballroom. Those of you planning to be in the area for the holidays can order pre-sale tickets beginning October 3rd. Stay tuned for more info and details on the full New Year’s lineup.