Władzio (or Vladzio) Valentino Liberace (May 16, 1919 - February 4, 1987), known by his surname Liberace, was an American pianist and vocalist. His only role in a Disney production to date was a guest appearance on The Muppet Show in episode 309. He also appeared in The Muppets Go Hollywood. When Bernie the Agent shows Kermit the ad for frog singers in The Muppet Movie, a full page ad for Liberace is shown on the back of Variety. When asked about their musical influences during an interview to promote The Muppets, Dr. Teeth said, "Personally speakin’ I gotta shout out to the great Dr. John, as well as the inestimable Elton John and the inextinguishable Liberace."