Menswear Dog
According to this stylish Shiba Inu's Tumblr page, his interests include "never washing his selvage denim, lurking around Soho for someone to notice his steez, and sniffing fine a$$ bitches." And rocking Pharrell's Grammy look like a pro?
Maru the Cat
Jiff the Pom
Biddy the Hedgehog
There are no wire cages for this traveling hedgehog! He knows how to vacay, and a quick glance at his Instagram page shows his preferred mode of transportation is handheld.
Boo
"My name is Boo. I am a dog. Life is good," is what this famous Pomeranian's Facebook page that boasts over 11 million likes says. And his good life includes being the "spokesdog" for Virgin America airline and the most adorable character of two popular books.
Grumpy Cat
The feline phenom with the famed miserable pout can now add movie star to her long list of accomplishments like best-selling author, bottled coffee drink maker, and calendar cover girl.
Sir Stuffington
Yo-ho-ho and a bottle of yum! This deliciously cute little guy had an unfortunate start and was found with fractured jaw and missing eye amongst other ailments. He's now Facebook famous and his popularity is increasing daily.
Ginny
Other dogs may spend their mornings on a walk, but this U.K. based Jack Russell terrier with a knack for costumes prefers a spot of tea and crossword puzzles at sunrise.
Princess Monster Truck
This finicky feline may have been found outdoors, but now that she's living the Internet-famous life, she and her loveable underbite prefer to peer out on New York's East Side from her princess perch.
Beast
No funny faces or comic costumes were needed for this Hungarian Sheepdog to become a social media celeb, because his dad, Mark Zuckerberg, created the platform that has him at almost 2 million likes.
Sam the Eyebrow Cat
Why look grumpy when you can look surprised, worried and perplexed? But this viral sensation has no need for concern, becaue his Internet fame has him racking up Instagram followers rapidly.
Yogurt the Pirate Dog
This swashbuckling Chihuahua may be one of the newest pups to pop up on Instagram, but even with one eye he can see those endorsement deals rolling in soon.
Sockington
This domestic cat is notable for his words more than his pics. Twitter famous, the cat is known for feline funny tweets like, "roll roll roll roll I DIDN'T CHOOSE THE RUG LIFE rug life chose me."
Giggy
This pampered Pomeranian belongs to the popular Real Housewives of Beverly Hills star Lisa Vanderpump and is signed with the prestigious Creative Artists Agency—the same high-end talent firm that boasts A-list clients like Jennifer Aniston & George Clooney.
Hamilton the Hipster Cat
The unmistakable, perfect curly white mustache has memes declaring this tabby "the most interesting cat in the world" and his distinguished look has landed him a Urban Outfitters T-shirt deal.
Tuna the Chiweenie
The celeb pooch with his signature overbite will be lending his paw to raise awareness for pet adoption and funds for rescue groups when he goes on the Tuna Tour.
Lil' Bub
Move over Oprah, this cat famous for her "perma-kitten" face has her own talk show and even made an appearance at the 2014 Puppy Bowl halftime show!
Colonel Meow
The Guinness World Record holder for "Longest Fur on a Cat" is Himalayan-Persian crossbreed who sometimes pals around with the famous cat pack that includes Lil' Bub.
MORE PHOTOS: See which celeb pets are on Twitter and Instagram!