A singer whose only purpose is to sing

Watching the stunning Italian mini-series The Best of Youth right now, and its quite a moving piece despite its sprawling length, as it follows the lives of two brothers from the 60s until now. Amongst the many songs it uses includes the song Faustus Leali - A Chi. When I listened to it, I thought that the singer's only purpose, which his rich falsetto, was to sing. Whatever else about him hardly matters, because I believe he was placed on this earth, so he could sing a song to touch us deeply, and little else he did would matter.