Rhythm Is Our Business

The song that started it all. Written when Cahn and Chaplin were barely in their twenties, “Rhythm Is Our Business” became the theme song of the Jimmie Lunceford Orchestra — one of the great swing bands of the era — and gave the duo their first significant professional foothold in the music business.

A statement of intent as much as a song, its title could serve as the motto for Cahn’s entire sixty-year career.