Today's a day we celebrate
A number that's truly great
It's Pi, that mathemagical thing
That makes our nerdy hearts sing
The ratio of a circle's circumference
To its diameter, with no interference
It's an irrational number, never-ending
And yet, its beauty is unending
On this day, we give it praise
In countless digits, we can gaze
From three point one four to infinity
Its digits bring us joy and clarity
Pi's essential in math and science
In geometry and physics reliance
And on this day, we honor it
With pie, that delicious treat, a perfect fit
So, let's raise a slice of pie
And give thanks for Pi, oh my
For all the wonders it has brought
To science, math, and life, a lot.