Johnny Mathis is an American singer of popular music, with several dozen of his albums achieving gold or platinum status and 73 making the Billboard charts. Guinness world records and music charts historian Paul Gambaccini confirms Mathis record sales have surpassed well over 360 million worldwide. This makes Johnny Mathis the 3rd biggest selling artist of the 20th century after Elvis Presley and Frank Sinatra (as for 2018).