The internet’s favorite feline with a sour disposition has passed away. “Grumpy cat’s” family took to social media early Friday to announce that despite care from top professionals, grumpy cat passed away earlier this week at the age of seven. The cause of death, according to her owners, was complications from a urinary tract infection. “Grumpy cat”, also known as tartar sauce, was a calico mix who suffered from feline dwarfism. She became an internet sensation for her perpetually “grumpy” face. Her owners say grumpy cat helped millions of people smile around the world… And her spirit will live on through her fans everywhere.