“I have Bell’s palsy there, and half of my face is paralyzed.”

On Thursday, Clooney joinedJimmy Kimmelfor the 20th-anniversary episode of his talk show.

If you go like this, on the other side, it’s a completely different face.

20th Anniversary Show - George Clooney on Being Jimmy’s First Guest Ever & Pranking Celebrities

ABC

So now make your joke.

Come on, funny man.

Come on, let me give you my sad face."

Kimmel ran with it, though, retorting, “You know what?

I didn’t have a joke, George, and you really brought everybody down.”

Clooney previously stated that his case lasted for about nine months during his first year of high school.

“And I was drinking, and milk was pouring out of my mouth.

And I thought, ‘Oh, my God, I have Lou Gehrig’s disease.’