Last night in NYC, Dakota Fanning and Leelee Sobieski got dolled up for the 2012 Tribeca Film Festival Vanity Fair Party, Kevin Bacon and Jon Hamm hung out at the Food Bank For New York City's 2012 Can-Do Awards, Nate Lowman and Spencer Sweeney stopped by the Public Art Fund Spring Benefit, Serefina opened in Meatpacking, and so much more. Last night's parties were all about Leelee Sobieski's Jil Sander dress! (No? Well, it should be.)

[Photos: Dakota Fanning, Drena De Niro, Rachel Roy, Leelee Sobieski]

Tory Burch Ivanka Trump Amanda Hearst Daniel Benedict Macy's Timo Weiland Graydon Carter Mark Baker Mick Rock Peter Martins Mario Batali Ramona Singer Duffy Susan Shin Dakota Fanning Gavin Brown kevin bacon donna karan Francisco Costa Wendy Diamond Melissa Berkelhammer Paper Magazine helena christensen Rachel Roy Gayle King Kate Davidson Hudson Jill Hennessy Andrew Saffir Nate Lowman Olivia Chantecaille Amy Fine Collins Alexis Bryan Morgan Adelina Wong Ettelson Sharon Bush Julia Louis-Dreyfus Mark Gilbertson Patricia Clarkson Michael Douglas Anne Burrell Stanley Tucci Wendi Murdoch Cipriani Wall Street Matthew Settle Kyra Sedgwick Robert DeNiro Grace Hightower Goldie Hawn Fernanda Niven Nicole Trunfio Michael Bloomberg Tom Colicchio Bettina Prentice Catherine Zeta Jones Wendy Williams Karen Duffy Lily Cole Bob Balaban taylor olson Jean Shafiroff Muffie Potter Aston Glenda Bailey Salmon Rushdie Chelsea Leyland Gavin Rossdale Diane von Furstenburg Yvonne Force Villareal Katie Couric The Plaza Hotel Walt Frazier Michael K. Williams Jessica White Christian Leone Jon Hamm Pamela Joyner Ray Kelly Ron Perelman Michael Stipe Ashley Bush Leelee Sobieski Alberta Ferretti jerry saltz Jennifer Westfeldt Amanda Burden Charlie Rose Flo Fulton Kyle MacLachlan Alison Brod Benjamin Millepied Paul Arnhold Vittorio Assaf Slate Stephen Baldwin Diane Neal Rob Pruitt Nina Griscom Billy Crystal Christine Quinn Nima Yamini Tinsley Mortimer