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
Joe Cocker's voice in the late 60's was unbeatable. Saw him on his first U.S. tour with his Grease Band. Knocked me out the window. At the time, I had a dream of putting Joe Cocker and Janis Joplin together to make an album which would have been the best blue's singing duo of all time.
Yeah sure. Janis can't sing the blues. Just ask Jim Morrison. OOPS, too late.
I am starting to feel Eddie Vedder is our best rock singer. Lightning Bolt tour is a defining moment on how well his voice has matured.