From Muppet Wiki

Rapunzel is a classic children's fairy tale that has been spoofed multiple times by the Muppets.

• Muppet Magazine issue 15 featured Miss Piggy as Rapunzel.

• In a fourth season Sesame Street News Flash, Kermit reported on the scene as Prince Charming urged Rapunzel (who had a screechy Brooklyn-accented voice, provided by Jerry Nelson) to let down her hair. She did...by letting it fall right off her head. (EKA: Episode 0692)

• Rapunzel was the featured guest in the "Hair" installment of Elmo's World. In the same episode, Dorothy imagined Elmo as Rapunzel, in a broad spoof of the story. (EKA: Episode 3934)