Most likely to be the
party pooper

Grumpy Cat

Birth date: April 5, 2012 Facebook Likes: 8,432,072

Tatar Sauce, publicly known as Grumpy Cat, first made her appearance on Reddit in September 2012 and quickly gained popularity for her grumpy disposition. Due to feline dwarfism and an under bite, Grumpy Cat has a permanent frown on her face. But that hasn't stopped her from living a life of fame as the Official Spokescat of Friskies.