is heading to Late Night with David Letterman
for the first time in 13 years.
It should be an interesting sit-down, to say the least. The two have a lengthy history, as O'Brien took over Letterman's Late Night
spot in 1993.Other Links From TVGuide.com The Tonight Show With Jay LenoJay LenoConan O'BrienLate Night with David LettermanJohnny Carson