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.

John Oliver, Jon Stewart, Jimmy Fallon, Seth Meyers and more had cameos during the July 21 episode of "The Late Show With Stephen Colbert."

Stephen Colbert labeled himself a “martyr” for getting his flailing late-night CBS show canned — while telling  President Trump on-air to “go f–k yourself.”

Fox News Digital spoke with CBS insiders who question the timing of the network's shocking decision to cancel "The Late Show with Stephen Colbert" next year.

The state of late-night TV is keeping media executives from sleeping well. CBS’ decision to cut ties with Stephen Colbert and its decades-old “Late Show” franchise come next May will leave a major hole in the format — but one that has been widening.