In the TV show Penn & Teller: Fool Us, the famous stage magicians invite other illusionists to trick them. After performing in front of Penn Jillette and Teller, the duo try to describe how the guest star performed the illusion. A panel of judges determine if they succeeded. If Penn and Teller are wrong, then the guest star wins a trophy for successfully fooling their famous colleagues.
In this video, Axel Adler shows how competitive stage magic can be. Somehow he appears to have three legs. Which one (or possibly two) is fake? Just when you think you've got it figured out, Adler does a trick that throws you off.
-via The Awesomer