Just About Every Brand Wants a Slice of Pi Day

Ah yes, Pi Day, celebrating a mathematical constant, a number with way too many decimal places, a number used to calculate the diameter, radius and circumference of a circle.

It's also a number that seems to inspire brands to create a wide range of pi/pie-related social media updates. From the obvious pizza and bakery brands to the slightly more tangential tech brands, there's been quite a bit of fun and questionably topical output on social media today.

AT&T commendably tied its post back to actual science education:

Getting kids interested in #STEM should be easy as #Pi. #PiDay http://t.co/fXlKKDenvL pic.twitter.com/IIJEHCWF6L— AT&T (@ATT) March 14, 2014

Bing got pretty serious with its decimal dedication:

Happy 3.141592653589793238462643383279502884197169399375105820974944592 307816… Day. http://t.co/0BVx1aXVDK #piday pic.twitter.com/v0l5KH0Ny8 — Bing (@bing) March 14, 2014

And even Red Bull was true to the math:

Engineered for energy. Happy π day. pic.twitter.com/6eFmQYdsDo

— Red Bull (@redbull) March 14, 2014

But a lot of brands just wanted to cover Rebecca Black's "Friday:"

It's Pi Day, Pi Day gotta get down on Pi Day. #HappyPiDay

— Little Caesars (@littlecaesars) March 14, 2014

Pi Day, Pi Day, gotta get your Betty on during #PiDay… http://t.co/09P3bV2wwS pic.twitter.com/yZUOrc3FGt

— Betty Crocker (@BettyCrocker) March 14, 2014

It’s Pi day, Pi day, gotta get down on Pi day. #Friday #PiDay #InfOgraphics pic.twitter.com/iN3Vb0WISL

— Oreo Cookie (@Oreo) March 14, 2014

Then there was a lot of the usual branded oddness:

RT if you're 3.14 times more excited to eat a pie today. #PiDay.

— Domino's Pizza (@dominos) March 14, 2014

Eat pie for breakfast! While you’re at it, why not make it a low calorie Tasti Mud Pie flavor? Happy Pi Day to all our Tasti lovers.

— Tasti D-Lite (@tastidlite) March 14, 2014

This A319 has a tail number that takes #PiDay to new heights! Math geek? Book + Trip = Today! http://t.co/VAAwnUfjSb pic.twitter.com/qoAN93g7DY

— Delta (@Delta) March 14, 2014

Happy #PiDay, friends! Forget searching for the end of Pi, celebrate with a slice instead! http://t.co/Fyh8yXsYO0 pic.twitter.com/TLvczxkVLM

— Pillsbury (@Pillsbury) March 14, 2014

Today could be 3.14 times more exciting. Easy equation to solve. #PiDay pic.twitter.com/vUsfPQiZI2

— Pepsi™ (@pepsi) March 14, 2014

Happy Pi Day, friends! pic.twitter.com/JOU1PtUbYi

— Samsung USA (@Samsungtweets) March 14, 2014

Happy Pi Day! AKA, the only time math gets to be delicious. Or even tolerable. pic.twitter.com/YmecImD7zV

— Pepto-Bismol (@Pepto) March 14, 2014

It's #PiDay! PIES WILL BE FALLING FROM THE SKY WOOO wait what it's a math thing OK NUMERALS WILL BE FALLING FROM THE SKY not as great i know

— DiGiorno Pizza (@DiGiornoPizza) March 14, 2014