For humans, singing is as natural as speaking. Not that everyone is good at it, but almost everyone has some ability already built in. Most of us sang songs as children. People might sing in church, while walking down the street, driving in the car, or in the shower. There’s nothing more natural than singing, and music is a language everyone can understand no matter where they’re from.
There are a few who cannot match pitch or reproduce a note that they hear, but this is exceedingly rare. A tiny percentage of people, less than 5%, have a genetic condition called amusia, commonly referred to as “tone-deafness.” Research has shown that even most people with poor singing voices can hear music just fine.
Not all singing uses words, or lyrics, and even when the lyrics are in a foreign language it doesn’t diminish enjoyment of the music by performers or listeners. Music is the only truly universal language, and singing is the purest form of that language which everyone can immediately understand.
Watch famed tenor Andrea Bocelli sing the classic song Con Te Partirò in Italian: