Jennifer Hudson and Usher performed at a billionaire's estate for the Apollo Theater. Alec Baldwin auctioned off a yoga lesson with his wife, Hilaria Baldwin, for $10,000, to benefit Guild Hall. Tory Burch's ex-husband threw a party for the new book "The After Wife," written by Hollywood producer Brian Grazer's ex-wife. And for breast cancer research, hedge fund manager Richard Perry and his designer wife, Lisa Perry, hosted a very pink paddle race and party, where the Moet & Chandon champagne flowed, left.