POPSUGAR Celebrity Conan O'Brien TV Tonight: Conan O'Brien's Last Late Night TV Tonight: Conan O'Brien's Last Late Night by Celebrity 2/20/09 0 Shares Like us on Facebook Sign up for our daily newsletter > Follow us on Pinterest Click to ReadTV Tonight: Conan O'Brien's Last Late Night A little more than 15 years ago, Conan O'Brien took over NBC's Late Show desk, filling the seat once occupied by David Letterman. Tonight, he'll say his farewell to studio 6A and start preparing to take over for yet another comedy icon. Read More Conan O'Brien Conan O'Brien Canadian Horror Story Is the Spoof We've Needed This Whole Time Daniel Radcliffe Plans to See the New Star Wars Movie Dressed Up as This Iconic Character Gabrielle Union and Dwyane Wade May Have Just Created the Newest Wedding Trend Remember When Jake Gyllenhaal Cracked You Up With Tales of His Childhood Halloween Costumes? POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests. Be in the Know With OurCelebrity and Entertainment Newsletter Personalize A-Listers Young Hollywood TV Movies Sign up with facebook or By signing up, I agree to the Terms and to receive emails from POPSUGAR.