James Horner, the celebrated composer of several Hollywood smash-hit films including "Titanic" and "Avatar," died on Monday in a plane crash at the age of 61, US media reported.Hollywood trade magazine Variety reported that the composer died when his personal aircraft crashed in Santa Barbara, California."Brilliant Composer James Horner, friend & collaborator on 7 movies has tragically died in a plane crash. My heart aches for his loved ones," wrote director and colleague Ron Howard on Twitter.Horner won two Oscars for his work on historical drama "Titanic." One for the song "My Heart Will Go On" performed by Celine Dion and the other for the film's score. He was also nominated for an Academy Award on numerous other blockbuster movies including "Apollo 13," "Braveheart" and "Field of Dreams." His first nomination came in 1986 for heart-pounding science fiction film "Aliens"Hornertarget="_blank"'>"There is nothing that shaped my movie-going experience more than the musical genius of James Horner. He will live on through the ages," tweeted actor Rob Lowe.