GrumpyCat

Grumpy Cat, whose real name is Tardar Sauce, is one of the most famous cats on the Internet, known for her perpetually "annoyed" and "sulky" expression. Born on April 4, 2012, in Arizona, USA, her unique look was caused by a rare genetic condition.
Grumpy Cat's rise to fame began when her owner, Tabatha Bundesen, posted a photo of her on Reddit in September 2012. The image quickly went viral, turning Grumpy Cat into an internet sensation. Her frowning face became a symbol of "annoyance" and "frustration," appearing in countless memes, pictures, and videos.