(CBS) -- Last night the world bid adieu to what many will and everyone should call an icon. WEB EXTRA: Click Here To Watch The Full Episode Comedy host of CBS' "Late Show" David Letterman signed-off, ...

The former ‘Late Night' and ‘Late Show' host will interview Zach Galifianakis in his Just For Laughs festival debut after ...

The legendary comedian, 78, who is known for his beloved shows Late Night with David Letterman and the Late Show with David ...

David Letterman is not just a household name; he is one of the defining voices in comedy history. His last stand-up performance in Canada dates back to February 1978, during a show called 90 Minutes ...

The comments came when the former king of late night TV appeared on the show hosted by his former executive producer.