Prince

Prince, (b. 1958) also known for a time as The Artist Formerly Known as Prince, appeared as a guest star on Muppets Tonight on September 13, 1997.

Seventeen years before, in 1985, Prince's original score for the movie Purple Rain defeated Jeff Moss' score for The Muppets Take Manhattan for the Academy Awards.

Spanish dubbed version
Spanish dubbed version of Muppets Tonight found a problem when dubbing Prince's speaking voice, as there was no precedent of Prince speaking and dubbed to Spanish (Previous interviews were subtitled, allowing audience to hear Prince's voice).

It was finally decided that Prince's Spanish voice for Muppets Tonight would be provided by dubbing actor Iván Muelas, who usually dubs Will Smith and who would later dub Brian Henson (Scooter and Janice) for It's a Very Merry Muppet Christmas Movie.