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) vocalists, Eirik Norheim ("Messiah") and Sven Erik Kristiansen ("Maniac"), in 1986 and 1987, respectively. Norheim played vocals only for a concert, which took place in April 1986 in Ski, and by the end of that year he had quit Mayhem. He later formed hardcore punk band Within Range and Oi!/street punk band Cockroach Clan. Whereas, with Kristiansen, Mayhem recorded its first EP, "Deathcrush", in 1987, and released it through Euronymous' newly formed label Posercorpse Music. The initial 1,000 copy release of "Deathcrush" quickly sold out. It was later reissued in 1993 by the newly renamed Deathlike Silence Productions as a