Mon beau sapin is the French version of O Christmas Tree. They are sung to the same tune, but the translation given is the literal translation of the French Christmas carol Mon beau sapin, which is quite different than O Christmas Tree.
Mon beau sapin,
Roi des forêts,
Que j'aime ta verdure.
Quand vient l'hiver
Bois et guérets
Sont dépouillés
De leurs attraits.
Mon beau sapin,
Roi des forêts,
Que j'aime ta parure.
My beautiful tree,
King of the forests,
How I love your greenness.
When winter come
Woods and tillages
Are stripped
Of their attractions.
My beautiful tree,
King of the forests,
How I love your finery.



