John Williams Conducts "Imperial March" at 90 Years Old | National Symphony Orchestra

Film composer and Kennedy Center Honoree John Williams is persuaded to conduct the National Symphony Orchestra in a memorable performance of his "Imperial March" from Star Wars during a gala to celebrate his 90th Birthday. Subscribe to The Kennedy Center! http://bit.ly/2gNFrtb #johnwilliams #starwars #nationalsymphonyorchestra