In Honor of Grumpy Cat's 4th Birthday Here's Some Stuff You Probably Didn't Know About the Internet's Favorite Feline

We're big fans of Grumpy Cat here at Cheezburger, so there was no way we were gonna miss out on her birthday. To help us celebrate, get to know our favorite little grump with these fun facts.

Grumpy Cat birthday Cats - 772869
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