In a hilarious skit for his new US chat show, James enlisted the help of retired footballer David to promote their new underwear line, D & G Briefs.
In the black and white video, James says "a man needs to be able to see within himself". Meanwhile, David says: "Beauty is skin deep. It's underneath that counts."
Both stand proud and tall as they show off their white boxer shorts in the visual.
While David shows off his model credentials as he runs his fingers through his hair, James is seen making funny gestures behind him.
Watch the video below:
As it ends, James jokes: "Available in no stores anywhere!"
James has been basking in the success of his new fame Stateside since taking over the show just over a week ago.
Last week the Gavin and Stacey star enlisted the help of Mariah Carey for a bit of car karaoke in his Range Rover - and the results were hilarious!
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