Johnny Mathis & Deniece Williams. John Royce Mathis (b. September 30, 1935), known popularly as Johnny Mathis, is an American Grammy Award-winning singer and songwriter of popular music. The last in a long line of traditional male vocalists who emerged before the rock-dominated 1960s, Mathis concentrated on romantic jazz and pop standards for the adult contemporary audience through to the 1980s. Starting his career with a standard flurry of singles Read more on Last.fm