Lyrics to Bayesian Believer: http://math.bu.edu/people/mg/music/believer.txt
For me, "Bayesian Believer" is a funny term. "Belief" has such strong connotations of "faith" for me. I always said that I didn't "believe" in anything - that all was open to doubt.
I'd heard rumors that some leading Bayesians had achieved rank in the Bardic Conspiracy. But I wasn't aware that every two years, some of the world's top statisticians hold a Bayesian Cabaret, full of songs, dances, and skits about Bayesian probability theory.
...no, really. Really. I think my favorite has got to be this one.
YouTube seems to be full of this stuff, including What A Bayesian World and We Didn't Start The Prior. Be sure to also check out some of the recordings and the Bayesian Songbook.
Eliezer's finished his sequences, and it's a new era for Less Wrong. Let's celebrate...Bayesian style!