MAC AND ZAC: The dinner party John Demsey, group president of the Estée Lauder Cos. Inc., threw Wednesday night at Mr. Chow was nothing short of a full-on Zac Posen lovefest. “We’re here to honor an incredible man and designer,” Demsey said at the dinner, held in celebration of the 11-years-and-counting relationship between MAC Cosmetics and Posen. “He started designing as a very young man and we have supported him since then.”

The crowd included Uma Thurman and Dita Von Teese—who flanked Posen at the table—as well as Debbie Harry, Margherita Missoni and Crystal Renn.