A cavalcade of clues:
Our last unidentified artist (who liked her men short-tempered) appeared, along with a well-known singer/actor in a movie about cars, that is rather well-known by you Ray, I suspect. The last unidentified song was featured in that movie, but as an instrumental by another group.
It was was a song about a car, not a fish.
She didn't write it.
Most of the songs in this film were written or co-written by a famous singer who shared his surname with the star of this film.
And here's another clue, to confuse (or clarify) things further, she also had a minor hit with a vocal version of a movie theme that was a much bigger seller when recorded as an instrumental by another group of musicians.