Some of the biggest YouTube and meme stars of the year had nothing to do with Bieber fever or "Gangnam Style" but with adorable, curious, and grumpy cats. Whether it's because they got us giggling in true LOL Cat fashion or made our hearts melt with tales of courage, take a look back at the most memorable feline stars of 2012.
Anakin the two-legged cat  was born without a pelvis or back legs and became a star for how he's adapted to his situation. He balances himself by positioning his front legs toward the middle of his body and, thanks in part to his undaunted spirit, gets around like most other cats do.
A sad French cat, Henri's been known to ponder the meaning of life. A video  in which he talks about being tormented by long naps and not being able to snack on birds got the award for best cat video of the year at the Internet Cat Video Film Festival.
One look at Venus and you know that she's special. The cat with a half black, half orange face and one blue and one green eye had the Internet asking if she was real and offering theories of how she came to be.
Oskar the kitten was born without eyes; his rise to fame began with a video that his owners captured of him as a newborn playing with a toy ball.  It won Friskies' best cat video award.
Colonel Meow looks mad — all the time. Whether the cat is playing Nintendo  or lounging around, its bulging eyes and wild hair  always give away its true feelings.
Cute Pusheen the cat is the star of an animated webcomic series with a very big fan base. Pusheen loves to snuggle and eat, and her life is documented thorough pictures and GIFs on her very own website. 
Tard the Grumpy Cat
Tard the Grumpy Cat became one of the biggest Internet hits of the year  after pictures were posted to Reddit in September. Spawning memes left and right, the mixed breed kitty couldn't hide her grumpiness  no matter what the situation.
Called one of the cutest cats ever, Lil Bub is a dwarf and "perma-kitten," which means she'll have kitten-sized features  all her life. But that doesn't stop her from living like to its feline fullest.
Spangles is a cross-eyed kitty that was born on the Fourth of July. Like many of us, he loves to take pictures in fun hats and costumes.