Use of fut
There is a line in the chorus of a song by Zaz which says qui fut vous, qui fut moi. I understand it, but when I looked up fut to understand the tense, it says it is passé simple only used in formal writing and speaking. Is that really the case? Why do you think she used it in this song if it is? The song is La Lessive if you want to find it on YouTube to listen to.