Back in the mid-1980's I learned this version orally from a homeless street musician in Austin, who went by the name of "Fiddlin' Willie".
He said he learned it from his "Uncle Dewey" in Louisiana. I think he was referring to Dewey Balfo, although Willie's lyrics are a bit different.

(Note: I'm not a French speaker, the following lyrics are based on phonetic memory from playing it many times on the streets of Austin.)

Jolie Blon, jolie fille,
Jolie ma, ma chere petit.
La fleur du mon coeur, tu a mis mon coeur en feu,
Car vou et ma chere, Jolie Blon.

And his version of the English (probably not 100% literal):

Jolie Blon, pretty girl,
You're the flower of my heart.
You have set my heart on fire, and I've loved you from the start,
And I'll love you forever, Jolie Blon.