John Royce "Johnny" Mathis (born September 30, 1935) is an American singer of popular music. Mathis concentrated on romantic jazz and pop standards for the adult contemporary audience through the 1980s. Starting his career with singles of standards, Mathis became more popular as an album artist, with several dozen of his albums achieving gold or platinum status, and 73 making the Billboard charts. According to the Recording Industry Association of America, Mathis has sales of over 27 million sellers, certified units in the United States. According to recordings chart historian and music writer Paul Gambaccini, Mathis has recorded over 130 albums and sold more than 350 million records worldwide.