When I was a freshman in high school I had PE first hour, which sucked but what didn't suck was a girl in our class found her Jem cassette player & cassette tape from when she was a kid and she brought it in so we could not only listen, but sing along too as well. I know what you are thinking it is just like that Saved By the Bell episode with the girls singing I'm so Excited in the locker room. You are right it is almost exactly like that!
Yes I still do know the words to the theme song thanks to my freshmen physical educations class.
While looking for a picture of the cassette player I found this picture online and it was crazy how suddenly I could remember exactly how the plastic felt and what the plastic mask smelt like. I can't remember if my mom bought me the costume or if I just wore it at a friends but I know I wore that costume. It is so crazy how I had no memory of that costume a few minuets ago but now I can tell you what it smelt like.