The Gucci / UNICEF party may be Fashion Week's most limelit event, but there's another affair in the works that promises to be just as boldface but maybe even chicer: The French Vogue dinner party for Carine Roitfeld's son, Vladimir. The young model (seen at left on the cover of Hercules) is also the beau of Lily Donaldson - presumably he'll host her, plus his mom and sister Julia, on the rooftop of the Gramercy Park Hotel. The fete is the latest in a string of too-cool French Vogue parties, including a memorably exclusive one last year where Julia, Margherita Missoni, and Anna Wintour's daughter Bee Shaffer joined forces to entertain Mischa Barton, Gemma Ward, and virtually every other girl who's had a Conde Nast cover. As for this one, we expect it to be the Charlotte Gainsbourg of dinner parties - quiet, sexy, and achingly cool. Ou est votre invitation?