The only thing as iconic as "Back to the Future" is its theme music.

"Alan Silvestri totally understood what we were after," said co-writer and producer Bob Gale in a recent interview celebrating the best time-travel movie ever made. 'Back to the Future' EXCLUSIVE - The Score
In honor of "Back to the Future Day" (October 21, according to our DeLorean's time circuits), here's a clip showing rare footage of Silvestri scoring the film and conducting the orchestra responsible for one of best movie themes in the history of always.

"Back to the Future 30th Anniversary Trilogy" is available to own now on Blu-ray & DVD.