Show' host, who started his Monday broadcast addressing his ‘Late Show’ counterpart’s cancellation, also posted on social media last week about the news.

After Stephen Colbert announced "The Late Show" was being canceled by CBS, fellow late-night hosts Jon Stewart, John Oliver, Jimmy Fallon, Seth Meyers, plus other hosts and comedians, showed up to support him.

Stephen Colbert recruited celebrities including Adam Sandler for an Astronomer CEO kiss-cam spoof on Monday's "The Late Show."