Penn and Teller

Penn Jillette and Teller were introduced to one another by Weir Chrisimer, and on 19 August 1975, Penn & Teller did their first show together at the Minnesota Renaissance Festival. From the late 1970s through 1981, Penn, Teller, and Chrisimer made up an act called "Asparagus Valley Cultural Society" which played in San Francisco at the Phoenix Theater. This act was sillier and less "edgy" than today's Penn & Teller act. Chrisimer helped to develop some bits that continued, most notably Teller's "Shadows" trick, which involves a single red rose.

By 1985, Penn & Teller were receiving rave reviews for their Off Broadway show and Emmy award-winning PBS special, Penn & Teller Go Public. In 1987, they began the first of two successful Broadway runs. Through the late 1980s and early 1990s, the duo made numerous television appearances on Late Night with David Letterman and Saturday Night Live, as well as The Tonight Show with Jay Leno, Late Night with Conan O'Brien, Today, and many others.

Penn & Teller had national tours throughout the 1990s, gaining critical praise. They have also made television guest appearances on Babylon 5 (as the comedy team Rebo and Zooty), The Drew Carey Show, a few episodes of Hollywood Squares from 1998 until 2004, ABC's Muppets Tonight, FOX's The Bernie Mac Show, an episode of the game show Fear Factor on NBC, NBC's The West Wing, in a two-part episode of the final season of ABC's Home Improvement in 1998, four episodes during season 1 of Sabrina, the Teenage Witch in 1996, NBC's Las Vegas, and Fox's The Simpsons episodes "Hello Gutter, Hello Fadder" and "The Great Simpsina" and the Futurama film Futurama: Into the Wild Green Yonder in 2009. They also appeared as three-card Monte scam artists in the music video for "It's Tricky" by Run-DMC in 1987, and were thrown out of a Las Vegas hotel room in the music video for "Waking Up in Vegas" by Katy Perry in 2009.

Their Showtime network television show Bullshit! took a skeptical look at psychics, religion, the pseudoscientific, conspiracy theories, and the paranormal. It has featured critical segments on gun control, astrology, Feng Shui, environmental issues, PETA, weight loss, the Americans with Disabilities Act, and the war on drugs.

On Bullshit!, the duo described their social and political views as libertarian.

They have also described themselves as teetotalers. Their book, Penn & Teller's How to Play in Traffic, explains that they avoid absolutely all alcohol and other drugs, including caffeine, though they do appear to smoke cigarettes in some videos. Penn has said that he has never even tasted alcohol, and that his tolerance for certain drugs is so low that his doctor only had to administer a minute amount of anesthetic relative to what one would expect necessary for a man of his size to undergo surgery.

The pair have written several books about magic, including Penn & Teller's Cruel Tricks For Dear Friends, Penn & Teller's How to Play with Your Food, and Penn & Teller's How to Play in Traffic. Since 2001, Penn & Teller have performed six nights a week (or as Penn put it on Bullshit!: "Every night of the week ... except Fridays!") in Las Vegas at the Rio All Suite Hotel and Casino.

Penn Jillette hosted a weekday one-hour talk show on Infinity Broadcasting's Free FM radio network from January 3, 2006 to March 2, 2007 with cohost Michael Goudeau. He also hosted the game show Identity, which debuted on December 18, 2006 on NBC.

Their new television series Penn & Teller Tell a Lie premiered on the Discovery Channel on October 5, 2011.

Penn & Teller have also shown support for the Brights movement and are now listed on the movement's homepage under the Enthusiastic Brights section. According to an article in Wired magazine, their license plates are customized so they read, "Atheist" and "Godless", and when Penn signs autographs, he often writes down, "there is no God" with his signature Hide