John Williams Conducts "Imperial March" at 90 Years Old | National Symphony Orchestra
John Williams composed all of the music for the Star Wars films.
Uncle Al
Not to mention many of Steven Spielber's pictures including, but not limited to, Jaws, the entire Indiana Jones franchise, many, many other films, and, of course the massive partnership with George Lucas on Star Wars. This guy is a living legend, a master of his craft, and simply to have so much wonderful music created by that mind is awe-inspiring.