Kathy Griffin surprises David Letterman with strip down. Unbelievable moment did happen on David Letterman’s ‘Late Show’ when Kathy Griffin strip down. “Oh my, oh my.”

‘Late Show With David Letterman’: Kathy Griffin Strips

Kathy Griffin has spent a lot of time and money on her super-toned body and so she’s been flaunting it of late by stripping on television. Mostly when Anderson Cooper’s there. She got naked — often — at Cooper’s house last year and also braved the elements in just her underwear on his New Year’s Eve show. In fact, she’s done it so often in front of Cooper that now he even has a “no nudity” sign to hand when she’s on one of his shows.

She was explaining to “Late Show” (Weeknights, 11:35 p.m. EST on CBS) host David Letterman why she thought it was appropriate to take her clothes off on television when he dared her to do it there and then.

So she did.

Letterman helped her out of her frock, gallantly unzipping it for her, and then he stood back to admire her derriere. “Wow!” he said, and then seemingly lost for words, he kept repeating “Oh my, oh my.”

“The Late Show With David Letterman” airs weeknights, 11:35 p.m. EST on CBS. (The Huffington Post)