If you could use one trademarked song in any bit of media...
Say you were working on making a movie, video game, or the next big Funimation dubbed anime. If you were given the opportunity to use one trademarked song in your work, what would it be?
For my choice, I would produce a cover of "Holding Out For a Hero", because that is practically one of the best (if not the best) epic tracks to play for an epic sequence.
Assassination Classroom's got the right idea. They have the song in their soundtrack.