(2 of 19) Celebrities at Fashion WeekNew York Fashion Week always brings out the stars, and this season is no different. Some of Hollywood’s heaviest hitters have come to support their favorite designers. From Pink to Sienna Miller to Britney Spears, the celebrities are sitting front and center. Mary-Kate and Ashley Olsen The Olsens sit pretty as they wait for the Jenny Kayne Fall 2007 runway show to begin on Feb. 8.