then it got stuck in my head for HOURS.

Hahahaha that is what some songs can do to our brains. I think its the instrumentals in this song that does that. I regard her voice as an instrument anyway, so maybe the whole combination did the trick for you. Funilly enough, I forgot all about the song until this comment of yours. While writing this one, she is sounding in my head (and no, I don't have her track playing 🙃).