N.R.G.

NRG is an American metal band fronted by Les Brown on lead vocals, with Lee Mangano on drums, Pat Lynch on bass and Ernie Burns on guitar. They provided the track "Instruments Of Destruction" on The Transformers: The Movie.

...the Instruments of Destruction era for the band was one our most fulfilling times in our musical careers we are very proud to have had a part in the animated classic Transformers:The Movie... no if's and's or but's!Les Brown on the band's contribution to the movie.

From Teletraan I: The Transformers Wiki, a Wikia wiki.