James Roy Horner (born August 14, 1953) is an American composer, conductor, and orchestrator of film music. He is noted for the integration of choral and electronic elements in many of his film scores, and for frequent use of Celtic musical elements.
Horner has scored over 100 films. His first major film score was for the 1979 film The Lady in Red, but did not establish himself as a mainstream composer until he worked on the 1982 film Star Trek II: The Wrath of Khan. Horner's score for Titanic is the best selling orchestral film soundtrack of all time while Titanic and Avatar, both directed by James Cameron, are the two highest-grossing films of all time. He has also collaborated multiple times with directors Jean-Jacques Annaud, Mel Gibson, Walter Hill, Ron Howard and Joe Johnston.
Horner has won two Academy Awards, two Golden Globe Awards, three Satellite Awards, three Saturn Awards, and has been nominated for three British Academy Film Awards.
Before writing his first film scores, Horner was an accomplished concert hall composer. His first concert work in over 30 years came with Pas De Deux though, and featured Norwegian duo Mari & Hakon Samuelsen.