Thank you, Jimmy Fallon, for bringing some levity to 'Lost.' Don't think it can be done? Well, when Matthew Fox visits 'Late Night' (weeknights, 12:37AM ET on NBC), Fallon has some rapid-fire personal questions for him that no one's asked before.

"Kate or Juliet?" asks Fallon. "Both -- at the same time," says Fox.

Other gems: "Who shaved their chest -- the character Jack or Matthew Fox?" and "What was more fun -- trashing the Lighthouse mirror or beating the crap out of Ben Linus?"

Check out his answers in the video clip.