As many of you may (or may not) know, Conan O’Brien used to write for The Simpson’s (back in their glory days, in my opinion). Now that he’s got his own show, he had some of his former co-workers on the show — Dan Castellaneta (voice of Homer and many other characters) and Harry Shearer (voice of Mr. Burns among others) — and it’s amazing to watch voice talent like that in person.