Head over to the wiskundemeisjes (even if you don’t understand Dutch, although it’s more fun if you do) and take a look at the movie of five mathematicians singing
The path of love is never smooth
But mine’s continuous for you
You’re the upper bound in the chains of my heart
You’re my Axiom of Choice, you know it’s true
… and so on. It’s hilarious, at least if you’re into a capella songs and/or mathematics.