The composer of the Mission: Impossible theme is Argentine composer Lalo Schifrin. He wrote the iconic theme for the original 1966 American espionage TV series Mission: Impossible, and the piece has since become a hallmark of the franchise, including the film series. Schifrin's theme is distinctive for its unusual 5/4 time signature and has won multiple Grammy Awards. Schifrin was celebrated for his fusion of jazz and orchestral elements in this composition, which has been widely recognized as one of the most recognizable TV and film themes in history.