I think if we're going to throw around superlatives such as "Best Male Singer of the 20th Century," we need to have some basic standards by which to say someone qualifies. So here's a starting point: 1) Technique -- the singer displays greater overall ability from a technical standpoint than most singers of the 20th Century. 2) influence -- the singer 's style was more influential on other singers and music overall than his peers. 3) musicality -- the singer's overall musicality exceeded the thousands of other people who recorded music during the 20th Century. 4) style -- the singer's phrasing and style stand apart from those who came before him. 5) popularity -- the singer's work was acclaimed by many people. Now, to be among the "Best Male Singers of the 20th Century," a singer need not have every single one of these categories, but he should have at least a couple of them. By this standard, I'd say a few obvious nominees are the great and famous operatic singers, simply because there is little debating their technique and record of accomplishment. Jazz singers as well are easier to judge by this criteria -- Mel Torme and Frank Sinatra definitely fit. It is somewhat more subjective in the rock arena, but I'd say Paul McCartney is an obvious choice (a little more so than John Lennon in that McCartney was technically better.) Mick Jagger is not a great technical singer, but he certainly fills most of the other requirements. Elton John? I don't think anybody is trying to sing like him, nor do I think he's really contributed much to the state of the art. He is popular, of course, and has made a great deal of money, but I think critically speaking, his musical contribution is much less significant than his commercial success, unless you really want to equate "Crocodile Rock" with "Yesterday." I'd definitely agree with John Fogarty as meeting the criteria, again recognizing that in terms of pure technique, it's hard to put "Green River" up against a Mozart opera. I'd also throw Roger Daltry into the mix -- tremendously influential, innovative, musical and technically adept. Mick Jagger? I think so. There's also some blues singers who should be included in terms of influence and musicality, such as Howlin' Wolf and Muddy Waters. As for Gino Vanelli, I have to admit that "Gotta Move" was a song of his that I liked, and I recognize he's got a good set of pipes and decent technique. But unless I'm missing something, I'm not reading a lot of interviews in which people are saying, "Yeah, Gino Vanelli was a big influence and helped me figure out a style I wanted to emulate." You may personally really enjoy his work, but I don't think that qualifies him as one of the "Best Male Singers of the 20th Century." As for country, I confess I don't know much about individual singers compared to their peers, but I'd sure have to agree that Johnny Cash is one of the greats.