GB News host Darren Grimes has blasted the Late Show host Stephen Colbert following his remarks on Princess Catherine.

The Late Show host poked fun at the Princess of Wales' absence from the public eye during his March 13 episode, weighing into theories Prince William was having an affair.

However, has since addressed his controversial remarks following Kate’s revelation on Friday that she had actually been battling cancer.

Mr Colbert tried to explain the reasoning behind his jokes during Monday night's show, “I mean, a lot of my jokes have upset people in the past, and I’m sure some of my jokes will upset people in the future”.

Mr Grimes labelled the Late Show host a “liberal lout”.

“It wasn’t a joke, I actually think in reporting that, thought he was giving some really cool insightful gossip,” Mr Grimes told Sky News host Rita Panahi.