reference - Was the Johnny B. Goode scene from Back to The Future inspired from Top Secret?

I think the similarities are coincidental.

The Johnny B. Goode scene ties directly back to the start of the film, where Marty is auditioning for the school program, and his band is rejected for being "too loud." In talking about the filming of the scene, Michael J. Fox says, "My favorite part of the original Back to the Future, filmed in 1985, was the Johnny B. Goode sequence during the “Enchantment Under the Sea” dance. As a frustrated musician, I was in my glory, learning the guitar chords and lead solo arrangements, as well as working with a choreographer to mimic and incorporate into the production number the signature styles and stage moves of my rock and roll heroes.” (Lucky Man: A Memoir, p, 144)

Top Secret was actually a parody of Elvis films (imdb, Wikipedia, Rotten Tomatoes), so it had a different inspiration.