How did music become part of Robert Klein’s stand-up performances?

Music was a natural extension of Robert Klein’s background and became an increasingly important component of his stand-up comedy performances. His mother played show tunes on the piano and sang, and as a teenager, Klein was a member of the doo-wop group the Teen Tones, which appeared on television.1

Throughout his career, Klein utilized his skills as an emotive singer with a preference for rhythm and blues styling to augment his act. He frequently incorporated his own humorous compositions and straight songs into his routines, often accompanying himself on the harmonica. His performance style was noted for capturing the energy and beat of rock 'n' roll, characterized by fast, free-associating delivery. This musical integration extended to his recorded work, where he received Emmy nominations for songs written for his HBO specials.1