The party posse was back in effect last night after a slow-ish holiday weekend. Naomi Watts and Dior hosted a big fete for Kirna Zabête at the brand's sprawling new Broome Street palace-store. Diane Von Furstenberg invited D.J./socialite Harley Viera-Newton to celebrate the launch of her fun holiday collection, and W Magazine teamed up with Bon Appétit for an early Art Basel soiree in Miami. From pretty hair to furry vests to Santa hats, we've collected our favorite looks from last night. Enjoy them in the slideshow ahead.