Carey Mulligan was decked out in Valentino last night to attend the Junior Spring Benefit for the Lincoln Center Institute at the Gramercy Park Hotel. She posed for photos with pal Zoe Kazan on her way inside, and later joined other hosts of the event, like actresses Lily Rabe and Mamie Gummer, to listen to a performance from Karen Elson, who just threw a divorce party to celebrate her split from Jack White. Carey had the evening off from performing in her off-Broadway show, Through a Glass Darkly. The role has earned her raves, and she'll end her run in a few weeks on July 3. Carey will then turn her attention to playing Daisy Buchanan in Baz Luhrmann's The Great Gatsby. The actress will team up with Leonardo DiCaprio for the project, though she was recently linked to another leading man in real life — Carey Mulligan is reportedly dating Marcus Mumford from the band Mumford & Sons.