David Letterman is retiring next year. :( The Internet has begun speculating who may takehis place.  Some of the names we heard include:  Stephen Colbert, Jon Stewart, Craig Ferguson, Neil Patrick Harris, Tina Fey, Jerry Seinfeld, Conan O'Brien and Jay Leno(???)

Dan picks Colbert, I say Tina Fey! What do you think? Leave a comment.

:) Shelby

And here are TMZ's greatest Letterman moments. -->