This International Cat Day, these world record breaking pets are the real celebrities

They're stoic. They're mysterious. They're light on their feet. They're smart as a whip, and sometimes, they're snuggly and super-cute.

But some cats are a paw above the rest. Several of our feline friends are known for more than just their slow walk across keyboards and claw marks on furniture.

Some cats hold world records. Sure, some of them did nothing but look grumpy to get them, but they'll take the title nonetheless.

In honor of International Cat Day, let's take a look at felines who have done so in the book of Guinness World Records.

Grumpy Cat, also known as Tardar Sauce, was the most popular cat on Facebook, with 8,759,819 likes as of May 3, 2017. The cat went viral in 2012 after a photo and videos hit the Internet.

Before dying at age 7 in May 2019, she lived with her owner, Tabatha Bundesen, in Morristown, Arizona. She made multiple TV appearances, including a 2013 documentary called "Lil Bub & Friendz," and in 2014 she had her own TV film called "Grumpy Cat's Worst Christmas Ever," according to Guinness World Records.

She “passed away peacefully” in the arms of her mother, according to a social media post by her owners.

Next up is Nala, a cat who as of May 13, 2020, has the most followers on Instagram. Nala's account, @nala_cat, has 4.5 million followers as of International Cat Day 2022.