James Horner, the Hollywood composer who wrote the Oscar-winning score for Titanic, has died in a California plane crash aged 61.<br />A trained pilot, he is reported to have been alone aboard a small private plane which crashed north of Santa Barbara on Monday morning.<br />The musician worked on three James Cameron films, as well as A Beautiful Mind, Braveheart, Troy and Apollo 13.<br />He won one Oscar for the Titanic film score and another for its theme song.<br />The musician shared his second Oscar with lyricist Will Jennings for best original song, the hugely successful My Heart Will Go On, sung by Celine Dion