""Johnny B. Goode" by The Starlighters
I credit the scene where Marty McFly plays this on stage in the '50s with my love for guitar (though I prefer Chuck Berry's version). For more please see my I was a preteen metalhead list.
Not the scene, but an appropriate enough video:
"The first major shift in my musical tastes began in 1985 thanks in part to this album. Up until this time I wasn't very discriminating in my tastes, probably because I was a kid & anything catchy sounded good to me. Anyway, when I first saw Back to the Future, you know that scene where McFly plays "Johnny B Goode"? Well, for some reason that really struck a chord with me (HA!). I became obsessed with that song & had to have this soundtrack.
My dad told me that song was originally done by Chuck"