I came across this ridiculously catchy flash file on IRC a while back. It’s so catchy I can listen to it for hours without getting tired, and I know I’m not alone in my misery/joy!
In any case, google for triplebaka.swf, and you’ll get a number of hits you can choose from (depending on which one’s actually working there and then). It’s basically TRIPLE BAKA feat. Miku, Teto, & Neru.
If you want to know what the hell that is, I have the pleasure of telling you that it’s Hatsune Miku, a Vocaloid :>
Oh, and more’s on YouTube. There’s so much hilarity in this stuff.
Edit:
And since I’m evil, in a good sense, I’ll throw in a link to the mp3-file, courtesy of GuardMonkey10, the one that originally pointed me to it.