Legendary magician duo Penn & Teller revealed the secret to one of the most famous magic tricks in history, taking viewers all the way through the trick of sawing a woman in half.

On a Tuesday episode of “Penn & Teller: Fool Us,” Penn Jillette and Teller spilled some of their secrets. There was also an unexpected surprise at the end that just might catch you off-guard.

Check out the clip below via Yahoo! TV:

Editor’s note: The episode first ran in 2011.

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