Impossible has died aged 93. Schifrin’s son confirmed the legend died due to complications from pneumonia in his home in Los

Lalo Schifrin, the composer who created the "Mission: Impossible" theme song, has died. Schifrin was 93 years old. The composer wrote more than 100 songs for film and television. Lalo Schifrin, the composer who wrote the widely catchy theme song for "Mission: Impossible," as well as many other songs, has died. He was 93 years old.