Back in the ‘80s and ‘90s, David Letterman was known for two things: hosting a talk show, and having a big gap in his teeth.

Speaking on the news of his upcoming assingment as host of CBS's LATE SHOW, Colbert commented, "Simply being a guest on David ... I have to go grind a gap in my front teeth." ...

the rush to have all teeth touching may be slowing. The gap-toothed have long been among us, as musicians (Madonna, Elton John, Amy Winehouse) and goofballs (Eddie Murphy, David Letterman ...

There's the generation gap, the credibility gap and that annoying gap between David Letterman's front teeth. For hot rodders, there's also the gap between ring ends on each ring in each cylinder ...

Stephen Colbert will succeed David Letterman as host of “The ... Now, if you’ll excuse me, I have to go grind a gap in my front teeth.” ...