Obscure character from The Simpsons, The Leader was the head and chief beneficiary of Movementarianism, a cult which had nearly all of Springfield as its members.

Homer Simpson proved obstinate in the face of brainwashing -- probably because there was more suds than brain involved -- but was finally converted by a catchy tune.

Sung to the tune of "Na na na na na na na na, BAT-MAN!", the Leader's tune is: "Na na na na na na na na, LEA-DER!"

Yes, it's incredibly dumb, but I laughed my ass off.