At my school we would gather in the morning and sing the national anthem so I know three English verses and two French verses. I know that makes me sound like I am from the late 1800s.
So I know the French version of the anthem by heart from back when I didn’t even know what the words meant. I used to just make the sounds that I had learned, and only later parsed those sounds into words when I was old enough to understand them*. I think I have an eidetic memory for songs.
* Car ton bras sait porter l’épée, Il sait porter la croix. What the shit did they have us kids singing?!?