Hi,
While surfin' on your wondeful website, I noticed a big confusion between two authors.
The song is : {+Ne me quitte pas+}.
This is the song which has been the most always played on the french radio, according to the Guinness book.
You say it was originally made by Simone Langlois. In fact it is Jacques Brel who wrote it, after his separation with a french singer, named Suzanne Gabriello.
In 1959, Brel was not yet as famous as he became a few years later, and he gave this song to Simone Langlois, as he did with "Je ne sais pas", "Au printemps",...
And he is actually the most famous interpret of this song cos he also sang it in 1959. Nowadays, nobody knows that Simone Langlois was singing that in 1959.
If you talk french, you can check what I say on her official website : http://www.friendship-first.com/artistes/simone_langlois/biographie_fr.htm
And on the many Jacques Brel websites, you will notice that they don't even mention Simone Langlois. You will just see the name of Suzanne Gabriello for who the song was written.
Regards,
Frédéric