From the August issue: There were live camels, trapeze artists, a 12-minute fireworks display and an enormous birthday cake carved in the shape of a Chinese temple. Blackstone boss Stephen Schwarzman’s 70th-birthday party, hosted at his Palm Beach mansion in February, drew dozens of high-profile guests including Treasury Secretary Steven Mnuchin, art dealer Larry Gagosian and billionaire businessman David Koch. Many of them cheered as Gwen Stefani crooned “Happy Birthday” at the end of the night. The party, […]