David Scott Mustaine is Megadeth's co-founder, frontman, songwriter, and sole member.
John Osbourne is an English singer, songwriter and TV personality. He gained fame in the 1970s as lead vocalist of Black Sabbath, earning the nickname "Prince of Darkness".
Paul Bruce Dickinson is an English singer, lead vocalist of Iron Maiden known for operatic singing and stage presence.
Rob Zombie is a horror/sci-fi artist with 15 million albums sold.