Leno and Letterman Reunite in Super Bowl Ad with Oprah

Jay Leno and David Letterman surprised Super Bowl fans yesterday when they appeared together during a 15-second commercial with Oprah Winfrey... for Dave's "Late Night" show!

Reports say Letterman was the one who came up with the idea of having himself and Leno watching the Super Bowl with Winfrey serving as referee. The two hosts poked fun at the fact that they didn't want to be in the same room.

Leno flew to New York last Tuesday, and wore a hooded sweatshirt, dark sunglasses and a fake moustache to get into the Ed Sullivan theatre without being recognized. Oprah later tweeted that it was all real, and shot in Letterman's studio.