"Dark Horse" is a song by American singer Katy Perry featuring rapper Juicy J. It was originally released on September 17, 2013, by Capitol Records as the first promotional single from Perry's fourth studio album, Prism (2013).
A Pakjirasan-styled story inspired by the 1990 classic Ghost. When a 15-year-old girl loses her boyfriend in a car crash, he comes back as a ghost to help her find her unfinished business or else the ghost hunters will show up. It's like Ghost meets Pretty in Pink.
