Something I just came across which I thought was absolutely brilliant. It's basically some history teachers trying to make history more interesting by changing the lyrics ('n voice) of a song to a theme relevant to the history lessons.
For example:
Bad Romance = the French revolution
Seven nation army = Jeanne d'Arc (Joan of Arc)
https://www.youtube.com/user/historyteachers
I loved it
so I figured I'd share it with you guys.