When that Prince music hit, every Batman fan in the world knew what was coming next. The Joker was going to...improve on the art in the Gotham Museum of Fine Arts or he was going to give away $100 Million in cash and then in turn attempt to poison all of the citizens dumb enough to take free money from the Joker (seriously, a day ago he was trying to kill all of you and now you trust him). For some people, the Batman soundtrack is terrible. For us in the nerd and comic book community, it brings up happy feelings of euphoric nostalgia.
I remember being a kid in 1989 when my parents used to play music on their record player (a record player is like a CD only bigger and more fragile. Better sound and quality than MP3s). One record in particular was the Batman soundtrack. At the time I didn't know who Prince was, but I did recognize the voice from hearing "When Doves Cry" and "Purple Rain" blasting in my house almost every weekend for years. So for me, while I had heard Prince a million times before, my first introduction to him was during Batman and scenes with the Joker. It was the first time I realized how important having the right music was to a movie. Prince added so much to the scenes in with the Joker and he transformed good scenes into a classic scenes.
I say all of that to say this, Prince was one of the few musical icons that bridged a gap that few others could. Sure, you may have known who Jay-Z, Michael Jackson, and others were back then, but none of them were like Prince. He wasn't trendy, he was a trend setter. He did the things he wanted to do because they fit him. Whether it was wearing a blouse, high heel shoes, or ass-less pants during the MTV Music Awards, Prince did it his way. And while some people may look at the Batman Soundtrack and call it a failure, people who loved that movie will always revere it as an album that helped elevate a good scene to a classic scene. So for me, while I remain a Prince fan for life, this was the beginning of my love for his music. So from a comic book nerd, thank you, Prince, for blessing this movie with your presence