 In the 1970s and 1980s, he continued touring and recording, appearing with musicians such as Oscar Peterson, Bill Evans, Dizzy Gillespie, Kenny Werner, Pat Metheny, Jaco Pastorius, Elis Regina and Paquito D'Rivera.Among the film soundtracks that Thielemans recorded are "The Pawnbroker" (1964), "Midnight Cowboy" (1969), "The Getaway" (1972), "Cinderella Liberty" (1973), "The Sugarland Express" (1974) and "Looking for Mr. Goodbar" (1977).His harmonica theme song for the popular "Sesame Street" TV show was heard for 40 years.