Grumpy Cat, the online feline star has passed away, her family announced today. She died due to complications from a urinary tract infection, and passed in the arms of her owner Tabatha Bundesen.

Rubble, the pet believed to have been the oldest living cat, has died ... be a bit "grumpy" at times, as well. “He’s a lovely cat, although he has got a little grumpy in his old age ...