David Letterman and Conan O’Brien Goof on Jay Leno
Conan O'Brien made his much-anticipated appearance on 'The Late Show with David Letterman' last night and they wasted little time before ripping on Jay Leno.
Conan O'Brien
![Conan Season One Montage [VIDEO]](http://townsquare.media/site/190/files/2011/11/conan.jpg?w=980&q=75)
Conan Season One Montage [VIDEO]
The one-year anniversary of "Conan's" debut on TBS is next week and to celebrate, check out this video montage of Year One that Conan posted on YouTube. It's pretty cool.