The affair was a touch Joan Crawford, as Robert Verdi murmured, but that's only a bad thing for fans of wire hangers. As for the crowd gathered atop the Mandarin Oriental Friday night, a downtown-uptown mix of bon vivants, artists, and fashion heavyweights, few entered whose furs and woolens could be supported by mere dry-cleaner hanger-fare. Fe Fendi, Adrienne and Gianluigi Vittadini, Michelle Harper, Mikhail Barishnikov, Mary McFadden, Michele Oka Doner, Carlos Campos, and Christian Cota were among those present for cocktails, dinner, and dancing at the Casita Maria Fiesta! 2011. This year's honoree was Roberto Cavalli, and powerhouses like Michelle Harper stunned in Cavalli creations. The mood was warm and genial, the parquet was covered with couples staging their various interpretations of Latin dance, and the champagne and wine flowed freely. The charming Bill Cunningham stayed late into the night as well, and was, as always, a welcome presence. And an astute observer spied "S. Pellegrino Sparkles with Bulgari" behind the bar, its absurdist faux-decadence on full display: wherever you go, Bulgari bottle, so shall we.