Adam Pacitti was able to subtly moon the hosts on the controversial new channel, which was launched by journalist Andrew Neil as an “anti-woke” platform with a mission to battle against “cancel culture.”

During a segment in which presenter Dan Wootton and actor Laurence Fox accepted calls from the audience, Pacitti called in to ask a question about comedy and being offended by jokes.

Facing the camera, Pacitti then moved to show the background with a mirror behind him where his pants were dropped to cheekily reveal his butt.

“Hello. I am a great fan of your work and also a great fan of comedy,” he said. “I am a man that loves to laugh. I am of the belief that either one can joke about everything or nothing at all because somebody will always be offended by a joke.

“What are your thoughts on that?” he asked.

Both Wootton and Fox seemed to be oblivious of the prank that was being played out before them, and failed London mayoral candidate Fox went on to earnestly answer the question.

Screenshots from the moment were later shared on Twitter with Pacitti deeming the prank, “a solid night’s work.”

GB News, which is being described as Britain’s answer to Fox News, has gotten off to a rocky start with the channel being targeted by pranksters.

The channel refutes the Fox News comparison and said it’s an “opinion-led” outlet positioned as a rival to traditional rolling news broadcasters in the U.K. like the BBC and Sky News.

The outlet is being widely mocked after viewers called in with explicit pseudonyms in an effort to poke fun at the presenters and their “anti-woke” values.

Presenters Michelle Dewsberry and Simon McCoy both received messages, with the names “Mike Hunt” and “Mike Oxlong” both being read out live on air.

McCoy has since told viewers to “grow up” and said they will no longer read out surnames on air.

“Grow up. We’re a new company, we’re a new broadcaster, there are systems that we are putting in to stop idiots that would stop idiots like you from getting through,” he said. “They’re getting through at the moment but, please, we’ve got other things to worry about.”

The channel’s first week has also been marred by technical issues and now a number of large advertisers, including IKEA are pulling advertising.