Last night Kevin Bacon and Cameron Diaz showed off their disco moves at Studio 54, Kim Kardashian partied for 100 "Game Changers," Brad Goreski and Chelsea Leyland raged at the premiere of "Like Crazy," Waris Ahluwalia and Jay McInerney celebrated their luxury line, Solange Knowles spun at the C. Wonder opening, Emma Roberts admired Brazilian style, 50 Cent performed live and so much more. Last night's parties were all about bring back disco![Photo via BFA]

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Tinsley Mortimer Amanda Hearst Lauren Santo Domingo Ally Hilfiger Candace Bushnell Annabel Vartanian LuAnn de Lesseps Mary Louise Parker Peter Davis Emma Roberts Tyson Beckford Olivia Thirlby 50 Cent Kelly Bensimon Penn Badgley Ann Dexter-Jones Genevieve Jones kevin bacon Zoe Kravitz Clive Davis Christian Simonds Kelly Rutherford Kelly Klein Debra Messing Bob Colacello Melissa Berkelhammer Cameron Diaz Arianna Huffington Jason Binn Waris Ahluwalia Waldorf Astoria Gayle King Frederic Fekkai Andre Balazs Andrew Bevan Kim Kardashian Naomi Campbell Fern Mallis Katrina Bowden Lauren Remington Platt Anita Sarko Dori Cooperman Brian Williams Phillip Bloch chris benz Peggy Siegal Andrew Levitas Bianca Pratt Al Sharpton Zoe Saldana Gillian Hearst Lance Bass josh madden Gretchen Mol Genevieve Bahrenburg Yaz Hernandez Keith Richards Chelsea Leyland Elissa Lumley Carol Alt Eli Mizrahi Gregg Bello Jessica White Robert Kennedy Jr Michael Bastian DJ Josh Madden Muriel Brandolini Johan Lindeberg Top of the Standard Solange Knowles Brad Goreski todd diciurcio Camila Alves Justin Tuck ay McInerney Valerie Salembier Heidi Lindgren Kyle MacLachlan Maria Cornejo Paul James Andrew VanWyngarden Maino Alina Puscau Paulina Porizkova Amy Ryan Joe's Pub Tammany Hall Anton Yelchin Felicity Jones Like Crazy Victor de Souza Chris Burch Cary Fukunaga Vikram Chatwal Avicii Britne Oldford Skylight Soho Le Caprice Ry-Russo Young