Some days are grumpier than others...

Grumpy Cat, the feline famous on the internet for her permanent scowl, has died aged seven.

A statement says she died on Tuesday following complications from a recent urinary tract infection.

The cat from Arizona had "helped millions of people smile".

Some days are grumpier than others... pic.twitter.com/ws209VWl97

— Grumpy Cat (@RealGrumpyCat) May 17, 2019

Grumpy, whose real name was Tardar Sauce, went viral in 2012 after photographs of her sour puss - sorry not sorry went viral online.

According to owner Tabitha Bundesen, her facial expression was caused by feline dwarfism and an underbite.

Grumpy Cat travelled the world making television appearances and in 2014 even starred in her own Christmas film.

Madame Tussauds in San Francisco unveiled a waxwork of her in 2015.

Her Instagram account has more than two million followers.

Here are some our fav pics of Grump Cat;

 

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A post shared by Grumpy Cat (@realgrumpycat) on Nov 12, 2018 at 10:58am PST

 

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A post shared by Grumpy Cat (@realgrumpycat) on May 10, 2017 at 6:10pm PDT

 

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#G4P16

A post shared by Grumpy Cat (@realgrumpycat) on Sep 29, 2016 at 9:05am PDT

 

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#LONDON: Meet Grumpy Cat today at @hmv363OxStreet from 5-7!#GRUMPYCATSBRITISHINVASION

A post shared by Grumpy Cat (@realgrumpycat) on Jul 22, 2016 at 8:08am PDT

 

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A post shared by Grumpy Cat (@realgrumpycat) on Mar 30, 2016 at 12:55pm PDT