no, my guess its not known because they sing badly as they cant hear themselve properly, FORGET it, you;d just give people headaches
....that's what my son said whenever I start singing around the house....
...thought it was the dog barking and told my doggie to "shut up!...you're giving me a headache"
nobody has called the Cops on me yet....LOL
Priest's wife says my rich voice (baritone) comes from my abdomen/diaphram;must be from all of that middle distance running I used to do. I used to do 5ks and hope to build up mileage and go back to that again.