Tardar Sauce, better known by her Internet name “Grumpy Cat”, is a cat and Internet celebrity known for her grumpy facial expression. Her owner, Tabatha Bundesen, says that her permanently grumpy-looking face is due to an underbite and feline dwarfism. Grumpy Cat’s popularity originated from a picture posted to the social news website Reddit by Bundesen’s brother Bryan on September 22, 2012. It was made into an image macro with grumpy captions. As of December 10, 2014, The Official Grumpy Cat on Facebook has over 7 million likes.