I watched a bit of a movie when I was a kid in the 80s and I couldn't see more about it. It's a doubt that has followed me for my whole life, so I'm asking you people for help. All I remember is that it was an 80s style movie where a girl is listening music in a walkman (maybe inside a car) and from the rock music (I think the cassette or the music is haunted or something) a tread of pink energy appears and starts surrounding the girl while it (the energy) starts unbuttonning the girls blouse and she starts to arouse.
I'd really like your help in identifying this movie because I saw this bit of the movie when I was like 8 or something and this doubt has haunted me since. Thank you very much for your help.
I remember this film (or at least the trailer, here are some more scenes)
This above scene is in the trailer. The film is about a demon haunting a teenage boy.
Some more scenes:
The boy smashes his room up to stop the demon. His mother comes in and comments that he has smashed his stereo, he pauses for a second and replies "I wanted a new one".
He asks the demon about the scene where the girl's blouse was unbuttoned and the demon replies "cheap thrills".