Downey has sung on several soundtracks for his films, including for Chaplin, Too Much Sun, Two Girls and a Guy, Friends and Lovers, The Singing Detective, and Kiss Kiss Bang Bang.
Robert Downey đã từng trình bày nhiều ca khúc trong các phim ông tham gia: Chaplin, Too Much Sun, Two Girls and a Guy, Friends and Lovers, The Singing Detective và Kiss Kiss Bang Bang.