On a side note, my kids seemed to be embellishing on a cover song of their own and have been singing it nonstop lately, especially my three year old. It is from the popular "Jingle Bells Batman Smells" song, however they have their own spin on the lyrics.
Their version goes something like this:
Jingle Bells. Batman Smells.
Robin laid a gun.
He shot his butt in a Pizza Hut in 1941.
Somehow I like the original a lot better.