For us, Grumpy Cat is probably one of the most adorable memes ever created. In real life, the cat's name is Tardar Sauce and he lived with his owner, Tabatha Bundesen, in Arizona. The cat became widely known after Bundesen posted an image of her on her Reddit on September 23, 2012. The photo simply read, "Meet Grumpy Cat." And it not only withstood the test of time but also became a truly successful NFT.