There’s only one correct answer here as far as I’m concerned, and that is Voyage of the Rock Aliens. I genuinely enjoyed this movie, laughed a lot, and still today listen to the music occasionally, long after my honeymoon phase of a month following my initial viewing when I listened to the soundtrack constantly. I often have a very different take than the HDTGM hosts about the movies featured on the podcast, so it was a real treat to find out they love this movie as much as I do and just listen to them riff about and fawn over the music and costumes and themes and characters while sounding like their minds were blown the whole time.