Last night in NYC, Dennis Crowley came out to celebrate an evening of innovation and imagination at the American Museum of Natural History, Ashlee Simpson helped kick off the Samsung Galaxy S III celebrations with DJ Holy Ghost at Marquee, Ali Forney Center hosted their 3rd annual oasis at the Bowery Hotel, Jonn Hamm made a surprise appearance on stage at Williamsburg Park, and more! Last night's parties were out of this world.

[Photo via BFA]