Her owner Tabatha Bundesen says that her permanently grumpy-looking face is due to [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 July 14, 2014, "The Official Grumpy Cat" on Facebook has over 6 million "likes". 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.