bad movies with good soundtracks, scenes or characters

This is difficult - I put most bad movies out of my mind so no recollection of any soundtrack.     I can think of some recent dreadful films - Ocean's 8 for example - but no idea of the music.

Harley Quinn generally came out smartly, a perfect standard for many! x)

Some films made by pop groups (quite a few pop groups made films in the 1960s) are not the best (the pop singers are much better musicians than actors) but have good sound tracks.

Bad film, great (horror) scene - Killer Klowns from Outer Space, the human puppet scene.