Being the crazy cat lady I am, when I saw Primark had collaborated with one of the world's most famous cats, I actually screamed with excitement. Grumpy Cat, whose real name is actually Tardar Sauce, is one of the most famous cats in the world. Grumpy Cat has a form of dwarfism, which is the cause of her permanently unhappy facial expression, although her owners claim she is just a normal happy kitty, 99% of the time. Tarar has a brother, Pokey, a little black and white kitty, who looks a lot like a chubbier, fluffier version of my cat, Carnaby! Tardar only has photo sessions once per week and is rarely handled by strangers, unless on tour, as he is at the moment. Grumpy Cat became famous in 2012 after a photo posted on the social media site, Reddit, shot to fame.. and then Grumpy Cat, the kitty meme king was born!