"One male vocalist stands out above all others, and that is Elvis Presley. To understand why, I suggest listening to Elvis's 1954 Sun recording of "Blue Moon" and his 1960 version of "Fever." And be sure not to miss his rockabilly version of "Good Rockin' Tonight." Then check out his tender, sweet version of "Crying in the Chapel." Next, listen to the powerful high notes he hits on "American Trilogy," especially his version of "Battle Hymn of the Republic." Then listen to his undervalued masterpiece "What Now My Love" and "It's Now or Never." The latter is wonderfully sweet, until the power of Elvis's voice kicks in and takes the song to another dimension. Now listen to him growl out "One Night." Finish by listening to his enchanting country-flavored "That's Alright (Mama)" and gospel songs like "Peace in the Valley." Try as I may, I can't think of another male singer who can go from nearly infinite sweetness, to ferocity, to spirituality, to tremendous power the way Elvis does. With the right song in hand, he was untouchable. But was Elvis the greatest male falsetto singer of all time? It's hard to say if Elvis was really singing falsetto at times because his voice was so wonderfully high, pure, sweet and effortless. But does it really matter how he did what he did?"