"We are unimaginably heartbroken to announce the loss of our beloved Grumpy Cat," Tabatha Bundesen, Grumpy Cat's owner, wrote.
"Despite care from top professionals, as well as from her very loving family, Grumpy encountered complications from a recent urinary tract infection that unfortunately became too tough for her to overcome. She passed away peacefully on the morning of Tuesday, May 14, at home in the arms of her mommy, Tabatha.
Besides being our baby and a cherished member of the family, Grumpy Cat has helped millions of people smile all around the world -- even when times were tough. Her spirit will continue to live on through her fans everywhere."
Grumpy's Family -- Tabatha, Bryan, and Chyrstal"