Stashed in: Memes!, Tumblr!, Lolcats!, Art!, Photoshop, Moon!
Actually, this art is called 3Tard Moon.
Because Grumpy Cat's name is TardCat.
Makes a good desktop.
More on Tumblr: http://www.tumblr.com/tagged/tardar
More on PandaWhale: http://pandawhale.com/ifindkarma/grumpy
See also the very best Grumpy Cat gifs...
Is that why dogs bark at the moon?
Yes! They see Grumpy Cats!!!
3 Camel Moon
See also Grumpy Cat is... NOna Lisa.