The ? Song

On Elmo's World whatever the topic is about (ie. Birds), Elmo will sing a song about it. He says "Let's sing the Bird song". Then to the tune of Jingle Bells he sings

"Bird, Bird, Bird,"
"Bird, Bird, Bird,"
"Bird, Bird, Bird, Bird Bird"

Now with Isabel, she if we say sing the Baby Song or the Dinosaur Song or the whatever song. She'll sing using whatever word we substitue to the tune of jingle bells.

So Cute.