Anne Hathaway sings Stephen Sondheim's What More Do I Need? (from Saturday Night) followed by a performance of the Opening Doors sequence from Merrily We Roll Along where she's joined by Eric McCormack, Alexander Gemignani, and Stephanie D'Abruzzo.
Anne Hathaway showed up in Alexander McQueen to walk the red carpet at the New York premiere of One Day Monday night but she said she wasn't sticking around to watch her performance on the big screen.
