 "D'elles" includes two versions of the song "A cause".While the lyrics, written by Françoise Dorin, are the same on both versions, there are two different musical arrangements.The music for the first version, titled "A cause", was composed by Jacques Veneruso, and the music for the second version, titled "On s'est aimé à cause", was composed by Marc Dupré and Jean-François Breau.