Live from 2004. If this song doesn’t put you in a silly/happy mood at any point in your day, I’ll refund your money. Just look at all those people jumping, singing and dancing. The band is in there somewhere. That’s what it’s all about.
On a related note, if you have the time, you should bump on over to read Alesh’s post that combines The Unicorns, roshambo and game theory. It’s a doozy.