Last night in NYC, Jessica Stam joined June Ambrose at the American Ballet Theatre's Spring Gala, Santigold performed at Irving Plaza with surprise guests Pharrell and Andy Samberg, Rihanna and Neil Young kicked off the Robin Hood Foundation Benefit, Ricky Martin hosted an intimate fundraiser for President Obama, and more. Last night's parties were all about the performers!

[Photo: Santigold, Andy Samberg via TheoWargo/WireImage]

-

Olivia Palermo Russell Simmons Johannes Huebl Daniel Benedict Tia Walker Irving Plaza Scott Lipps Peter Davis Jennifer Connelly Dylan Lauren Kelly Bensimon Nigel Barker Anne Hathaway R. Couri Hay nina garcia Jessica Stam Becki Newton Christian Siriano kevin bacon Julie Macklowe Juliette Lewis Hugh Dancy Erin Fetherston Dani Stahl Britney Spears Norwood Rihanna Steve Cohen Vinessa Shaw Rachel Roy Nanette Lepore Gayle King Andrew Saffir spike lee Sarah Sophie Flicker Angela Lansbury Bill Cosby Andy Samberg Zooey Deschanel Heather Matarazzo Nate Berkus Santigold Simon Collins Amy Fine Collins Annabel Tollman Bebe Neuwirth Deborah Norville Cat Deeley Selita Ebanks President Obama Lin-Manuel Miranda Martha Plimpton LA Reid Adam Shulman Dori Cooperman Phillip Bloch chris benz Alexa Chung Stacy Engman Stanley Tucci Cipriani Wall Street Eva Longoria Gillian Miniter Caroline Kennedy Ali Wise Alek Wek lea michele Sam Waterston Coralie Charriol Paul savannah wise Soledad O'Brien Chris Messina Kevin Liles Lindsay Ellingson Oskar Eustis Wendy Williams Fe Fendi Ryan Seacrest Eve Lucy Sykes Jane Lynch Gordon Ramsay Jean Shafiroff Halley Feiffer Crosby Street Hotel Frederique Van Der Wal Randy Jackson Chelsea Leyland Prabal Gurung Patrick Wilson Julia Koch Rubin Museum of Art June Ambrose NeNe Leakes Donna D'Cruz Duncan Sheik Lloyd Blankfein David Boreanaz Amy Sacco