Tardar Sauce (born April 4, 2012),^[2] better known by her Internet name "Grumpy Cat", is a cat and Internet celebrity known for her grumpy facial expression.^[1][3][4][5] Her owner, Tabatha Bundesen, says that her permanently grumpy-looking face is due to an underbite and feline dwarfism.^[1][6][7] Grumpy Cat's popularity originated from a picture posted to the social news website Reddit by Bundesen's brother Bryan on September 22, 2012.^[1][8][9] 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".^[10] Grumpy Cat was featured on the front page of The Wall Street Journal on May 30, 2013 and on the cover of New York magazine on October 7, 2013.^[5][11][12]