Johnathan Coulton. All I want to do is eat your brains. Don't be so unreasonable! No one's going to eat your eyes...
They also seem to be grooving with the Tank Girl Soundtrack, and I made a mix CD of Abba, the Beatles and Queen. I also highly recommend downloading some of Bill Cosby's early standup and letting the kids listen. My girls can now talk about "The Belt".
Speaking of the Buffy theme, what else has that group done? Weren't they Scruffy Nerfherders or something like that?
And for TommysMommy, go back and read that book in a creepy come hither voice. Totally changes the book! Hilarious, yet not :P I want to be your... PERSONAL penguin.