Best Male Singers of the 20th Century


There is an interesting current discussion about the best female vocalists on CD. I have my own ideas about the best male singers (any category) of the 20th Century, but would like to hear other opinions.
sdcampbell
Rob Halford, then its the King (Diamond of course), then Bruce Dickinson. Or reverse the order of the second two. Clearly the top three.
Thanks,
Chris
David Bowie, if intensity & diversity of styles are the criteria used to judge the "best". He's in the same league with Freddie Mercury.
I hate to burst everyone's bubble but if you sit down with all his cd's and listen,I mean really listen to his vocal range and tonal quality there is NO DOUBT that Chris Isaak is the 20th centuries best male singer!As a matter of fact there is only one other male singer in musical history to better him & that was Elvis!