Two of the weekend’s longest-running party hosts, Bloomberg and Vanity Fair
, joined forces in 2009, hosting a V.I.P.-only party at the French ambassador’s residence for the past three years. Prior to that, Vanity Fair
director of special events Sarah Marks oversaw small parties at columnist Christopher Hitchens’s home and the Russian Trade Federation. Bloomberg’s parties have been going strong for most of the decade, and were known for over-the-top decor, high-tech installations, and fancy portable potties, all courtesy of Design Cuisine
’s Bill Homan.