Finite Simple Group (of Order Two): A Mathematical Love Song by the Klein Four Group.
The Klein Four Group is a very talented a cappella group "of the world of higher mathematics" of the Northwestern University mathematics department, composed of Clark Alexander, Scott Bailey, Mike Jo...
https://www.neatorama.com/2006/08/10/finite-simple-group-of-order-two-a-mathematical-love-song-by-the-klein-four-group/