A front-row full of A-to-Z-list celebrities (Claire Danes, Kristin Cavallari), seating bedlam (crashers!) and a full house at the big tent. Wasn’t Zac Posen showing in Paris this season? Anyone who thought they’d seen the last of Zac Posen’s traditional evening-slot spectacle underestimated Z Spoke, which made its runway debut with a splash. The party atmosphere was there and the clothes were just as festive, with girls turned out in punky magpie looks, rainbow makeup and tranny shoes. Which isn’t to say the clothes were out-there too. Rather, Posen wisely alternated between the fun stuff, such as printed bustier dresses with harness cutouts, and the kind of commercial sportswear the collection was created for — shrunken jackets, denim and Lurex knit T-shirts, all done with a colorful, kooky spirit.