It's National Cat Day, and there's no better way to celebrate—besides, you know, spending time with your cat—than sporting a T-shirt with one of the most stylish and hilarious cats of all-time, Grumpy Cat, plastered across the front.

Today, The Mountain, the brand that designed the legendary Three Wolf Moon T-shirts, is replacing the canines with Grumpy Cat himself on a collection of three different tees.

If you're not a cat person, you can still cop these tees because of their awesome tie-dye-like motif. And hey, the Three Wolf Moon T-shirts actually became New Hampshire's state shirt. So you know this tee can't be to far behind.

The shirts can be purchased today at The Mountain's e-commerce shop, and only go for $22 a piece. Cop one right meow!

RELATED: The 50 Funniest Grumpy Cat Memes