This has been recorded by several others, including versions by both Dave Frishberg and Bob Dorough, the composers, but Blossom's version is the best! It swings!

fave part:
I dig! I'm in step.
When it was hip to be hep, I was hep.
I don't blow but I'm a fan.
Look at me swing. Ring a ding ding.
I even call my girlfriend "man," I'm so hip.