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
Jayboard, I stand appended, as it were. Randy Travis, Waylon Jennings and countless other C & W artists can lay claim to awesome voices - it is hard to fake it in C & W without the pipes. Note: Dylan's vocal work on Nashville Skyline/Blood On The Tracks or Desire show off a voice better than you would guess otherwise.
Mario Del Monaco, Nat King Cole, Sinatra, Belafonte, Ray Charles, Roy Orbison