Piers Morgan was left bright red after claiming he has a "massive organ" on today's edition of Good Morning Britain.
The presenter, 54, made his joke in response to a remark that Sue Perkins made about him during last year's Bafta awards.
Piers and his co-stars Susanna Reid, Richard Arnold and Charlotte Hawkins were discussing the news that Graham Norton will be replacing Sue as host of this year's ceremony.
The show then aired a clip of Sue saying at last year's ceremony: "Tonight, of course, I am having to work alongside a massive organ.
"Now I know how Susanna Reid feels on Good Morning Britain."
But Piers wasn't happy with her remark and hit back: "Smug Sue Perkins has been elbowed off presenting the Bafta TV awards, of which we have been nominated twice. I think it is because of this joke.
"That was probably the only laugh she got all night."
Susanna asked: "Why would you be offended by references to a massive organ?"
Piers replied: "Nothing, I just wondered how she knew."
After his comment, Piers' face look noticeably more flushed as the conversation moved swiftly along.
Meanwhile during the show, Piers accused GMB bosses of "fat-shaming" him.
Smug Sue Perkins has been elbowed off presenting the Bafta TV awards.
Piers claimed that he can no longer be body-shamed by critics because he doesn't identify as "fat".
He said: "I have a personal announcement. I have been carrying a bit of timber but I'd like to now announce that I am identifying as skinny. In fact, I am one of the world's first trans-slenders.
"I am trans-slender, so you can't actually call me fat any more because I am now identifying as skinny and I expect to be afforded the respect of a trans-slender."
But Piers was left baffled when comedy music started playing during his speech before Susanna cleared things up, claiming it was "hippopotamus music".
She laughed: "I don't know what the director is trying to suggest!"
Piers hit back: "Let me get this straight, my director is fat-shaming me, is he? Why don't you waddle in here and stand in front of the camera. In you come, skinny boy - come and stand here and see how funny you find that noise then."
As his boss insisted it wasn't him who cued the music, Piers ranted: "Who was it? Some random person in the gallery, who isn't a director, directed that to be played, did they?
"Literally playing a hippopotamus sound. Come down here and let's have a square off."
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