Adeste Fideles ( Oh Come All Ye Faithful ) done in Latin the right way by Gerry Rafferty
https://www.youtube.com/watch?v=ne09LaJ_fMQ
I was in Catholic school grades 1-10. Back then it was (almost) ALL Latin Mass. I learned and sang Adeste Fidelis and many other songs and hymns in Latin. And of course intoned the “Kyrie eleison” in Greek.