Chick-fil-A's 13th annual 'Cow Appreciation Day' is going on until 7 p.m. today!

Get your cow costumes ready! If you dress up like a cow today and visit your local Chick-fil-A, you can get a free entree. It's all in honor of their 13th annual 'Cow Appreciation Day.' According to PR Newswire:

"Adult customers who dress in any type of cow attire, whether it's "head-to-hoof" or sporting a cow-spotted accessory, will be rewarded with a free Chick-fil-A entrée, such as an Original Chicken Sandwich, new Smokehouse BBQ Bacon Sandwich or breakfast favorite, the Egg White Grill. Children will receive a free Kid's Meal for dressing in a cow costume."

It's really that simple! Show up in a cow costume, get free food.

To show you just how easy it is, I actually dressed up like a cow and went to Chick-fil-A this morning to test it out!