David Letterman is subtly showing support for his successor Stephen Colbert after CBS' shock cancellation of "The Late Show."

Colbert’s late show on CBS has never won a TV Academy prize. The president could well now have changed that. The video plays like a cave painting from the Neolithic era or, even more distantly, from when late-night television still mattered: Stephen Colbert sits in the host chair and makes amends with Donald Trump.

Monday night's (July 21) show also featured kiss cam-style pop-ins from supportive fellow talkers Anderson Cooper, Jimmy Fallon, Jon Stewart and Adam Sandler.

Stephen Colbert announced "The Late Show" was cancelled three nights after revealing his summer mustache on air. Coincidence?

Fox News host Greg Gutfeld is the ratings king of late night with 3.1 million average viewers, despite what Stephen Colbert may be telling his audience.