Super hero, famous mystery detective, and singer? Robert Downey Jr. first introduced his singing voice in his 1992 film “Chaplin,” singing the song “Smile” in his Oscar-nominated leading role. Over the years, Downey sang on numerous soundtracks, including film “Kiss Kiss Bang Bang” and TV show “Ally McBeal.” In 2004 Downey officially established himself as a singer with his debut album, “The Futurist,” which received mixed reviews.