The World's Grumpiest Cat— and the world's most adorable internet sensation—continues to delight fans of all ages. With her ever-present pout and sassy disposition, Grumpy Cat has won the hearts of ...

Grumpy Cat, the adorably grouchy-looking meme machine kitty, has passed away. The family of the dearly departed cat said she suffered complications from a urinary tract infection. She died on Tuesday ...