Dr. Teeth and The Electric Mayhem firmly established as the regular Muppet pianist. Later performances mostly feature lead vocals by Floyd or Janice and only a few featured Dr. Teeth. His speaking roles got even smaller after his performer Jim Henson's death; an exception was the 1991 Muppets stage show "Muppets on Location: Days of Swine and Roses", the voice being performed by John Kennedy. He performed Dr. Teeth from 1991 to 2003 but made only very brief appearances with very little dialogue, some examples being the 1999 film "Muppets from Space" and once in the music video for the We Are Family charity song in
Mayhem (band) had begun work on their fifth studio album. As of November 2013, the new album was being mixed, with an early 2014 release date expected. Several months later, on February 18, 2014, it was announced that Mayhem would release a new album in May 2014, with a new song "Psywar" made available for streaming. On February 20, 2014, the band's record label, Season of Mist, announced that the new album "Esoteric Warfare" would be released worldwide on May 27, 2014. This marked the first Mayhem studio effort since Blasphemer's departure and Teloch's permanent status in the band. In January 2015,