Yup, another list-ish entry. Feel free to include your own!
Billie Holliday: Her voice IS jazz, period.
Freddie Mercury: Nobody can sing rock like Freddie could. And he lights it up live... any idea how hard it is to sing like that in front of a hundred thousand people? Ridiculous.
Louis Armstrong - He's just the shit, forget about it. Easily one of the most unique voices out there. Master singer, trumpet player, and scat man.
James Brown - Soul. He has them.
Frank Sinatra - THE man for singing tunes. There's no one on this planet who can't fall for this guy.
Tom Waits - Sounds like he consumes nothing but bottle brushes and whiskey, and I LOVE IT!
Mikael Ackerfeldt (Opeth) - Probably my favorite metal vocalist. Has the best growl I've ever heard and his melodic singing is great too. Shame about Opeth kind of sucking now...
Bruce Dickinson (Iron Maiden) - This guy's voice knows no limits, even in front of 500,000 fanatic Brazillians.
Luciano Pavarotti -
www.youtube.com/watch?v=VATmgt… Nuff said.