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Grumpy Cat, whose real name was Tardar Sauce, was a domestic cat from Morristown, Arizona, known for her permanently grumpy facial expression caused by feline dwarfism and an underbite. Born on April 4, 2012, she became an internet sensation in September 2012 when a photograph of her was posted on Reddit, leading to widespread popularity and numerous memes. Her owner, Tabatha Bundesen, left her job to manage Grumpy Cat’s career full-time, capitalizing on the cat’s massive social media following and merchandise opportunities. Grumpy Cat passed away on May 14, 2019, at the age of seven, due to complications from a urinary tract infection.