According to the National Retail Federation, Americans will spend $2.6 billion dollars on Halloween costumes for adults, children and pets.
The pet costumes might be the smallest, but the industry is giant.
It's hard to know exactly what your pet is thinking once they have their Halloween costume on, but it's easy for humans to express what they think!
"I think they're adorable so... (laughs)"
Pet costumes are part of a multi-million dollar industry.
"We spend more on our pets than we do on ourselves!"
At any pet store there are aisles upon aisles of pet costumes for sale.
A groomer at Petco says in her 16 years of experience, she has even given Mohawk, lion or horn haircuts to go along with their Halloween costume.
"Just depends on the dog and how much hair it has." says Windy Hargreaves, Groomer.
She says owners often don't realize how big their dog is, so recommends getting a costume that is easily expandable.
"One of the girls I work with she puts yoda ears on her pit bull and it's the most adorable thing...some people are like why would you do that, because it's cute." says Hargreaves.
Windy used to dress her hound up who passed away at age 17.
So she knows first-hand why humans choose to spend so much money on the holiday.
"It makes you feel good, just like you would if you were spending on your children, I look at it on the same way, when it comes to people's pets, they're not just their dog, that's their baby, their child basically, some people don't have any kids and these pets become their children, just like you would spend 60 dollars on a costume for your child, they spend 60 dollars on a costume for their dog, or cat!"
Whether you're a cat or a dog person, most pet owners can agree on one thing.
"They're part of the family, so naturally they're going to want to go out and show their pet off, they dress them up." says Hargreaves.
Zeus, the cat with a mouse on his back, is up for adoption at the Petco in Bismarck.