Travis Ryan of Cattle Decapitation. This man makes some utterly insane sounds. I'm sure he is a demon. Emos Get OWNED by Cattle D! - YouTube Randy Blythe. Sounds like he ate a dragon and it fought back. Maynard James Keenan. Just a beautiful singing voice. The man is incredible. Jonny Davy Hal Sinden. Good friend of mine and poster here. His vocals (particularly his screams) are madness. Chad Gray. He's not as good as he used to be, but still awesome.