In Paris, celebs and fashion's top style setters are taking in the latest collections at Couture Fashion Week. Half the fun is the celebrity style sitting front row as collections like Valentino, Versace, and Armani draw out fashion's most stylish fans. We spotted Nicky Hilton, Clemence Poesy, and Jessica Stam all showing off their respective looks from Valentino just before the Couture show, but they weren't the only ones — inside is a who's who of celebrity trendsetters, fashion insiders, and designers from Zoe Saldana to Diane Kruger (and everyone in between).