David Letterman's Shocker Super Bowl Ad

David Letterman sometimes knows how to amaze people. Yesterday, he hit a home run by inviting his rival Jay Leno and Oprah Winfrey and Conan O'Brien to appear in a comic ad for his LATE SHOW WITH DAVID LETTERMAN. Surprisingly, Leno agreed, and so did Oprah. But Conan O'Brien claimed that he was too busy to appear in the funny ad.

According to INSIDE EDITION, Leno flew in to New York in disguise to keep the ad a secret. And both Leno and Letterman were very cordial and polite. It was an amazing and unlikely ad. It was great TV.

In other unlikely news, Hell just froze over!