Best Musical Moments of The Late Show With David Letterman
When word gets out that Lady Gaga is slated to make an appearance, you never quite know what the “Art Pop” diva has in store. Will she be covered in blood or meat, dressed as a man, or hatching out of an egg? When she stopped on the famous Late Show couch, Gaga had the biggest surprise of all for the host and his audience. She invited them all to the Roseland Ballroom for a performance. "You can come over and I’ll sing some songs," Gaga said before Bill Murray and Letterman led the crowd across 53rd street.