Mathis is the third-best-selling artist of the 20th century, selling 360 million records worldwide. He has received the Grammy Lifetime Achievement Award and has been inducted into the Grammy Hall of Fame for three recordings. Starting his career with singles of standard music, he became highly popular as an album artist, with several dozen of his albums achieving gold or platinum status and 73 making the Billboard charts. John Royce Mathis (born September 30, 1935) is an American singer of popular music.