The 'Celebrity Juice' host has landed a guest role in the ITV soap, playing a delivery man from the Rovers Return brewery, Newton and Ridley.
Keith - real name Leigh Francis - filmed his scenes on Tuesday, which also gave him the chance to cosy up to his favourite soap babe Michelle Keegan.
He posted a photo of the two of them behind the newly revamped Rovers bar on Twitter, egging Michelle - who plays Tina McIntyre on the soap - to leave boyfriend Mark Wright.
"You know who the real mr right is x," Keith tweeted.
He landed the cameo in the soap after meeting show bosses through pal Samia Ghadie, who plays Maria Connor.
His scenes are set to air later this year.