If they were going to be performed commercially you might need to pay an ASCAP licensing fee. Mairdie will probably know about that.
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Do You Need A Licence For A Cover Song?
You also can copyright your lyrics. My father and his friend did that for a song, Castles in Spain, in 1933, then renewed the copyright in 1956.