Emma Stone David Letterman Pictures

Emma Stone covered up a purple number with a neutral trenchcoat as she made her way into the Late Show studios in NYC last night. She stopped by the talk show to chat up The Amazing Spider-Man, which hits theaters on July 3. Emma has been on the go promoting the project with costar and real-life boyfriend Andrew Garfield for the last few weeks with appearances in France, Russia, and England. They've since landed in the Big Apple, where they already visited the Empire State Building for an official lighting ceremony. Emma and Andrew have had many cute moments during their press tour, including a casual walk around Manhattan yesterday.