The opening and ending for Gu Gu Ganmo (グーグーガンモ), a 1984 anime based on a manga by Hosono Fujihiko. The OP and ED were sung by Miki Matsubara, under the name "Suzy Matsubara."
Longer versions of these songs exist, but they're not sung by Matsubara. This anime is mostly only remembered for its awkward slaptick and fetish humour, and I theorize that's why Matsubara didn't use her full real name when she was hired to sing for it.
