TikTok users can't get enough of Floyd's undeniable anger, as one person jokingly warned: "Do not turn your back on this ...

but Grumpy Cat's not happy about it! Can the internet's favourite frowning feline discover the true meaning of Christmas? Voiced by Aubrey Plaza (Parks and Recreation).

Grumpy Cat Limited sued the owners of US coffee company Grenade for exceeding an agreement over the cat's image. The company only had rights to use the cat to sell its "Grumppuccino" iced drink ...

Grumpy Cat, the feline famous on the internet for her permanent scowl, has died aged seven, her owners say. A statement says she died on Tuesday following complications from a recent urinary tract ...

Since an owner wasn't found, the cat is currently being cared for by a CHP officer, who reports that it's not at all grumpy. In fact, "it's a very cute, nice kitty," Musselman said. More from CBS News ...