John Royce "Johnny" Mathis is an American singer of popular music. 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. Johnny Mathis has sold 350 million records worldwide as confirmed by Guinness Chart Historian Paul Gambaccini. Although he is frequently described as a romantic singer, his discography includes jazz, traditional pop, Brazilian music, Spanish music, soul music, rhythm and blues, soft rock, Broadway theatre, Tin Pan Alley standards, some blues and country songs, and even a few disco songs for his album Mathis Magic in 1979. Mathis also recorded five albums of Christmas music. In a 1968 interview, Mathis cited Lena Horne, Nat King Cole, and Bing Crosby among his musical influences.