Derek DelGaudio talks about his "theatrical existential crisis" with Stephen Colbert - Genii Online

In & Of Itself is Derek DelGaudio's one-man show, but it's not really a magic show, per se. Rather, it uses magic and illusion are used as a "metaphor for identity and the things we can and cannot see about each other." We're not entirely sure what that means in practice, but it had a major impact on Stephen Colbert when he saw it, to the point that he felt immobilized by the end of the show.

The interview is necessarily cryptic to avoid giving away anything that happens on stage, but it certainly sounds like a remarkable experience. You can learn more about In & Of Itself (which is directed by Frank Oz of Muppets fame) or purchase tickets here.