You know you've thought about it before. What's up, you wondered, with those permanent bachelors Bert and Ernie? The Broadway musical Avenue Q, inspired by Sesame Street characters all grown up with adult troubles, has an awesome song Nicky (the Ernie-ish character) sings to Rod (the Burt character). And someone added it to original Sesame Street clips. I'll have this song in my head all day!