...I did this when I was 7-ish and performed it for my mother. I am entirely too embarrassed to post the lyrics here; suffice it to say that Mutti was practically rotf laughing so hard. Such was my great talent.
Later on I wrote a song with one of my friends about mitosis (aptly entitled “The Mitosis Song”), which got a laugh from my Bio teacher. No bonus point, though. :[
