Singer Paul Anka is a Canadian-American singer, songwriter, and actor who has been active in the music industry since the 1950s. He is best known for his hit single 'DIANA' and for writing the theme song for The Tonight Show Starring Johnny Carson. Singer Paul Simon is an American singer-songwriter and actor who rose to fame as part of the folk-rock duo Simon & Garfunkel in the 1960s. He has since gone on to have a successful solo career, winning multiple Grammy Awards and being inducted into the Rock and Roll Hall of Fame.