Listen to Demain l'on se marie online. Demain l'on se marie is a French language song and is sung by Jacques Brel. Demain l'on se marie, from the album Les géants de la chanson - Brel-Brassens-Aznavour-Bécaud-Etc. (Remasterisé), was released in the year 2015. The duration of the song is 2:35. Download French songs online from JioSaavn.