Real-estate developer Jeffrey Greene, one of L.A.'s least-public billionaires, and New York real-estate executive Mei Sze Chan were married last weekend at his 27-acre Beverly Hills estate. Columnists Rush and Molloy had a one-graf item in this morning's New York Daily News, listing guests Hugh Hefner, Owen Wilson, Heidi Fleiss, Oliver Stone, Michael Bay, Russell Simmons and Tara Reid and mentioning a 16-foot-tall cake, 17-member orchestra and revolving dance floor in Greene's 24-car garage. Mike Tyson— yes, the boxer—was best man. I've got a few more details to add. The wedding supposedly cost $1 million to put on. The 280 guests included lawyer Robert Shapiro, Clippers' owner Donald Sterling, Tao owner Mark Packer and the Earl of Dartmouth, who flew in from London. So who are the happy couple? Greene is 52, Chan is 32. They reportedly met last year while Greene was in New York for Tyson's 40th birthday. Publicity shy in the past, Greene appears to be coming out a bit. The New York Times, Wall Street Journal and L.A. Times all had a presence at the nuptials and may have stories in the works, I'm told.