[T.G]

How can you have a list of great male vocalists and not include Tom "The Voice" Jones?

Or Sammy Davis Jr?

Or Big Joe Turner?

Or Captain Beefheart?

Or Tom Waits?

I'm not really much into gospel but colelctively, The Blind Boys of Alabama also belong (gotta go back a few years though, they had one or two members die in the last few years)

Also Cee-Lo Green when he's not rapping, is like Marvin Gaye, just an octave or so higher.

And of course William Hung.