Mary-Kate and Ashley Olsen at New York Fashion Week 2011

Before we fully immerse ourselves into London Fashion Week, we thought you'd like to check out all of the decked-out celebrities who hit up the first round of fashion festivities in NYC. No doubt, these A-listers stepped up their game big time, showing us a slick selection of shoes, bags, and, of course, the beautiful clothes to go with them. From Alexa Chung's prim and polished separates to red-hot looks from Elle Fanning, we couldn't ask for more Fall outfit inspiration. Peruse the slideshow to see some of our favorite celebrity looks from New York Fashion Week now!