Grumpy Cat, the feline whose permanent scowl turned her into an overnight Internet sensation, has died. She was 7. Grumpy Cat may be gone, but the memes that helped propel her to fame live on.

Grumpy Cat, the feline whose dour expression launched countless memes, died Tuesday of complications related to a urinary tract infection, said the cat's publicist. She was 7 years old.

Internet celebrity Grumpy Cat, the face of countless memes, has died at the age of 7, her owners confirmed Friday. Grumpy Cat — real name Tardar Sauce — shot to fame as a figurehead of online ...

(CNN) -- Grumpy Cat, arguably the internet's most popular cat and one of its first viral memes, has died aged 7. The furry sensation's family announced her death on Twitter on Friday. "We are ...