Pi Day
Pi Day pies (Creative commons photo by Flickr user Dennis Wilkinson)

If you've been following this blog long enough, you know that I (unironically) think the song Friday by Rebecca Black brings the world together. So imagine how pleased I was to find out it also holds a special place in the hearts of math geeks today.

Today happens to be March 14, aka Pi Day. That's pi as in ?, as in 3.14159 and so on, and it's celebrated today because the date is 3/14 (by American date notation anyway).

Pi Day often involves baking pies (the -e edible kind), calculating the circumference of circles, and reciting ? to as many digits as you can remember.

But, as it turns out, "Pi Day" sounds quite a bit like Friday, which means it now also involves rewriting the Friday song with informative (and hilarious) ?-themed lyrics. Let the YouTube parodies commence:

Fellow YouTube sensation Carly Rae Jepsen's Call Me Maybe also got pi-ed up for the celebration.

And check out these other famous songs, all tweaked (some hilariously, some genuinely awesomely) to celebrate this mathiest of days:

1,2,3,4 / 3.14 - Plain White T's

Because I Got High / Because I Got Pi - Afroman

Thrift Shop  / Pi Shop - Macklemore and Ryan Lewis

Jenny (867-5309) / Pi (3.14159) - Tommy Tutone

Dynamite / Pi-namite - Taio Cruz

Lose Yourself / Lose Yourself (In the Digits) - Eminem

There are lots more out there (mostly with much worse singing), including several versions of (no surprise here) American Pie. What other songs would you like to give a ?-themed twist to? Are you a ? fan?

As a bonus, here's what ? really sounds like, from a more scientific perspective: