Credit: Joanna Stern
Grumpy Cat’s real name is “Tardar Sauce.” She became an overnight Internet celebrity after her picture was posted on the news sharing site Reddit on Sept. 22, 2012. Known for her permanent grumpy expression, which, according to her owner, is a result of feline dwarfism, Grumpy Cat was named by MSNBC as the most influential cat in 2012. She was also the winner of Buzzfeed‘s “Meme of the Year Award” at the 2013 Webby Awards. The kitten sensation was slated to hit the silver screen for a Garfield-like film adaption.