The world's grumpiest cat!

The internet pays tribute to Grumpy Cat

Grumpy Cat: the feline who grew a business empire with IP rights

Grumpy Cat dies; internet sensation 'helped millions of people smile all around the world' - Los Angeles Times

Disgruntled tips and activities designed to put a frown on your face.Featuring the sour expression of internet sensation Grumpy Cat: Internet

Grumpy Cat

Meet the Most Influential Pets: Grumpy Cat, Doug the Pug and More

About Grumpy Cat®

Grumpy Cat made nearly $100 million? Not quite, owner says.

Grumpy Cat, Inc.: The business of an internet sensation

The 7-Figure Scowl: How Grumpy Cat Is Building a Media Empire – The Hollywood Reporter