The song "Dark Horse" by Katy Perry (feat. Juicy J) is a cautionary tale about the risks of entering a relationship. The lyrics warn that love can be powerful but can also be dangerous. Katy Perry's verses detail the potential repercussions of being careless or of taking someone for granted. Juicy J's verses describe the intensity of the connection and the difficulty of resisting temptation. Ultimately, the song warns that once you give your heart away, there's no going back.