John Towner Williams is an American composer, conductor and pianist. In a career that spans six decades, Williams has composed many of the most famous film scores in history, including those for Jaws, Star Wars, Superman, E.T. the Extra-Terrestrial, Raiders of the Lost Ark, Jurassic Park, Hook, Schindler's List, and the Harry Potter film series. In addition, he has composed theme music for four Olympic Games, NBC Nightly News, numerous television series and concert pieces. He served as the principal conductor of the Boston Pops Orchestra from 1980 to 1993, and is now the orchestra's laureate conductor.