Joss Whedon apparently got stir-crazy during that Writers’ Strike thing a little while back and cooked up a super-villain musical in his spare time. He’s putting it up in parts over this week (Part 1 is up now!) but on the 20th it all goes away (until you know, iTunes and eventually DVD). So you should really go watch it now as soon as you have the chance. It’s pretty amazing, and totally great.
Props go to Matt Cruea who threw me the link via his LJ.