Ever since Warner Bros. decided to push back Harry Potter and the Half-Blood Prince from its original November 2008 release date until July 15, muggles the world over have been trying to figure out how to satiate their thirst for new Potter material. Enter a group of typically brilliant University of Michigan undergrads (Go Blue!), who churned out this delightful musical adaptation that even includes a tap-dance number by Dark Lord Voldemort! It's no Once More, With Feeling, but then again, what is? [Flavorwire]