Guys,?? ??? ?? it's been a very special day.

A day of delight for internet animal enthusiasts and overbearing pet owners, and the bane of existence for actual pets. It's Dress Up Your Pet Day — an actual, genuine thing.

SEE ALSO: Very good dog keeps interrupting his human's shower for a very good reason

Apparently started by U.S. animal advocate Colleen Paige, Dress Up Your Pet Day was designed to promote pet adoption and generally showcase pets for the delightful, dress-upable creatures they are.

Mashable Trend Report Decode what’s viral, what’s next, and what it all means. Sign up for Mashable’s weekly Trend Report newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

Falling this year on Jan. 14, the day saw hundreds of social media posts featuring four-legged critters in tiny costumes.

We laughed, we cried, we picked out our favourites, including these very annoyed cats and one very disgruntled chug (pug-chihuahua).

These cats do not want to save the day.

View this post on Instagram

These little jaws will end your summer.

View this post on Instagram

Ollie does not want to participate in any fiesta, anywhere, anytime.

View this post on Instagram

Midnight will likely use an Unforgivable Curse for this.

View this post on Instagram

This little kitty just can't wait to be king so it can seriously banish its owner.

View this post on Instagram

This little feline does not choose you.

View this post on Instagram

This miffed cat wishes a plague of skulltulas on your house.

This Tweet is currently unavailable. It might be loading or has been removed.

And... this dear thing. Someone help.

View this post on Instagram

Ah, for good measure, look at this very good dog:

View this post on Instagram

---

Featured Video For You

---

Watch the transformation of chick beauty in 60 captivating seconds

---