Folk Songs About Mathematics and Pi

Pi day is March 14th, like in 3.14. Festivities peak at 1:59pm (3.14159).

The Pi Song (sung to the tune of "Oh Christmas Tree")

Oh Number pi, oh number pi,
Your digits are unending.
Oh number pi, oh number pi,
No pattern are you sending.
You're three point one four one five nine
And even more if we had time.


Tom Lehrer\ New Math
Tom Lehrer\ That's Mathematics

Hard 'N Phirm\ Pi\ Horses and Grasses
Women singing the digits of pi