David Letterman Is In Good Company! Check Out All Of These Smiley, Gap-Toothed Celebs!

David Letterman isn't the only star with diastema! What's diastema you ask? Well, it's a space or gap in between your teeth! Some of the most famous smiles under the sun have some space between their pearly whites! And you know what? We think this unique look is downright seXXXy! Take a look at who else in Hollywood has