(Video Link)
Rapper MC Frontalot composed this tense love song about a man who constantly reveals the ends of movies, books, and even historical events to his girlfriend. The video, directed by Max Isaacson, is quite creative. You can read the lyrics and credits at the video link.
Warning: it really does have a lot of spoilers.
Previously by MC Frontalot: You Are Likely to Be Eaten by a Grue
via Urlesque