innovative or excellent vocalists

Steve Perry

Sam Cooke

Axle Rose

Robert Plant

Sting

Stevie Wonder

maynard K?

James Brown

Eminem

Kurt cobain

Billie Halliday

Annie Lennox

Mariah Carey

Ella Fitzgerald

Janis Joplin

Amy Winehouse

Arethra Franklyn

Michael Jackson

Johnny Cash

ozzy Osbourne

Frank Sinatra

Bob Marley

Mike patton