Help with a song from this movie.

I think it's this movie that has a song I am interested in. There is a sort of exercise scene out on the field where all the girls are doing step aerobics or something like that. And they have music playing through the loud speaker. This guy takes the tape out I think and slaps his own tape into the machine and hits play. Well the guitar riffs that come blasting out of the loud speaker across the camp are pretty decent. And I was wondering who the band was and what the song was that he played. This is all I can remember from this movie is that particular scene I can't remember anything else at all.

Any help with the song in question please?. I would be most grateful if some light could be shed on this mystery I've been plagued with for years. I can't find the movie on DVD or I'd buy it myself and watch it again after so many years and finally see if it's on the end credits who did the song. It was very "Metal" sounding in the guitar work by the way. It's been YEARS since I saw the movie. But Anthrax "Aftershock" keeps coming to my mind when I think of that scene but I have that song and I am sure it's not that one, even though that song keeps coming to mind. I can picture it just now the chicks doing their keep fit class while listening to sissy music over the loud speaker. Then it all goes to buggery when the Metal music comes blasting out of the speakers all over camp.

That opening riff has remained with me for years and it's TORTURE not being able to find out who it was so I can track the song down. For the love of Heavy Metal... PLEASE HELP! lol

"I withdraw from the light of the sun."