Louis C.K. stopped by "Late Night with Jimmy Fallon" Thursday to talk hosting "Saturday Night Live," this weekend. As an alum of the show, Fallon wanted all of the details.

C.K. revealed that in one sketch, he loses his signature black tee for a ridiculous costume.

"I knew there should be one thing in it that I really don't wanna do," he said. "When I think about this one sketch, I go, 'Oh, God. That's gonna be awful.'... It's the one that I said, 'Please don't cut this sketch,' because I hate it."

And for fans worried about how the comedian handled the East Coast's recent natural disaster, earlier in the interview (below), he offered a simple message to Hurricane Sandy: "Hey, f*ck you!"

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