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

Stephen Colbert returned for his first full program after last week’s announcement that CBS was canceling his “Late Show.”

Late-night rivals and other celebrities rallied to support CBS "Late Show" host Stephen Colbert after the network canceled his show, and comedian Jon Stewart lashed out at Paramount Global for the decision to end the long-running TV program.

The partisan left’s ritualist wailing and gnashing of teeth over Colbert is quite revealing,” Brendan Carr tweeted Tuesday, adding that critics of the cancellation are ‘acting like they’re losing a loyal DNC spokesperson.

The FCC chairman called out at the "partisan left's" reaction to Stephen Colbert's cancellation by CBS on Monday, saying they were acting like they were losing a "loyal" spokesperson.

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

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.