American singer renowned for his velvety tenor voice and timeless interpretations of romantic ballads, jazz standards, and show tunes.Mathis emerged in the mid-1950s as Columbia Records' premier romantic crooner. His 1958 compilation 'Johnny's Greatest Hits' spent nearly 10 years on Billboard's album chart—a record. With over 80 albums and 350+ million records sold globally, he holds the longest continuous tenure of any recording artist at Columbia (1956–present)....