There was even more Fashion Week fun going down in NYC yesterday, with Sarah Jessica Parker kicking things off at the very '70s Halston event. She's a creative officer of the brand, and she was even decked out in one of the new Spring 2011 designs. SJP has made the rounds extensively over the past few days, turning up for Diane von Furstenberg's show and Fashion's Night Out as well. Alexa Chung and Rachel Zoe, meanwhile, turned up to see Marc Jacobs's prompt runway presentation. Check out our behind-the-scenes video of the beauty looks Marc and Francois Nars sent down the catwalk. Kelly Osbourne and Alessandra Ambrosio continued the Marc fun at his afterparty — make sure to stay tuned to Pop, Fab, Bella, and Fashionologie as the week continues!


To see more from NYC, just read more.