12345 678910 11 12

I've had a song in my head about the numbers 1-12 since childhood. It's really just a rhythm.

12345
678910
11
12

I say it the same way every time. Recently, D asked "Why do you always do that?" and I said because of something I saw on Sesame Street when I was your age. And, because that's totally how you're supposed to.
Being 7 (and prone to disagree for fun) he and I spent a few days arguing about it, until I found this!

http://mcooki.es/7850

Now, each day after school they want to watch the video, we laugh about the strangeness of the shoes and the submarine, I share a bit of my childhood with them, and they spend the remainder of the night driving me INSANE by repeating 12345 678910 11 12.