Over the weekend, Petra Nemcova held the Happy Hearts Fund Gala with Russell Simmons, Kanye West dropped by Indochine to celebrate Tom Sachs' first solo exhibition, Daniel Radcliffe and Broadway's brightest stars attended The New York Musical Theatre Festival Gala, Karlie Kloss and Bridget Moynahan unleashed their inner child at Elizabeth Glaser Pediatric AIDS Foundation's 2011 Kids For Kids Family Carnival, and so much more. Last night's parties were all about celebrating art, theatre and charity.