There's Another New Grumpy Cat on Instagram and She Might Be the Frowniest Feline Yet Kitzia the cat has over 56,000 Instagram followers.

A kitten with a permanently grumpy facial expression is delighting the internet, earning itself the nickname "Grumpy Cat 2.0." On October 10, Reddit user Diana (u/MickPawsome) shared a snap of her ...

Grumpy Cat toys have blue crystal eyes with the eye lids half closed, a down-turned mouth and white whiskers. This toy is labeled for ages 3 and older.

Feline celebrity Grumpy Cat will help unveil this year's annual holiday windows display at the Macy's Union Square store Friday night.

Grumpy Cat, the feline who became an Internet sensation in 2012, has retained one of Hollywood’s most notable litigators in an intellectual property battle against a beverage company marketing ...

This cat is in a happy place despite having a permanently sad face owing to a rare medical condition.

The cat follows in the footsteps of another expression-full cat, "Grumpy Cat" A British Shorthair cat's surprise-looking facial expression has made him an Internet star. duitang.com &#151 ...

In Grumpy Cat’s Worst Christmas Ever, Grumpy (voiced by Aubrey Plaza) is a pet store feline who has been returned at least twice for being “the kind of cat who looks like she would smother you ...

Looks like Grumpy Cat has found something to actually be grumpy about. The famous feline is in the midst of a lawsuit over the use of her likeness to sell coffee, Consumerist reports.

Now, why are this grumpy cat's mama's boyfriend's days numbered? Well, not to put too fine a point on it, but as this video explains, this cat is angry because his mom's boyfriend "is still ...

Social media users woke up to some sad news on Friday -- the death of the beloved Grumpy Cat.