This work is indeed a musical, originally premiering on Broadway in 1959. It is known for its comedic songs and lively score.
The musical is a comedic retelling of Hans Christian Andersen's classic fairy tale, 'The Princess and the Pea.' It playfully subverts many elements of the original story.
There have been multiple television adaptations of the musical, including productions in 1964, 1972, and 2005. These adaptations have featured notable performers in the lead roles.