Hyokkuri Pumpkin Island (ひょっこりひょうたん島, Hyokkori-Hyoutan-jima, lit. "peeking gourd island") is a kid show with puppets appears in the film Only Yesterday directed by Isao Takahata of Studio Ghibli. The title means The Flowing Pumpkin Island.
The show aired in 1960s. Taeko Okajima like the show as a kid. She sing the opening song to calm herself down. The song is called Morning Musume no Hyokkori-Hyoutan-jima.