From outfits inspired by blockbuster movies and TV shows to tweeting politicians, we've found the costumes expected to dominate Halloween 2017, according to the National Retail Federation and seasonal retailer Spirit Halloween.
First up is a popular, binge-watchable series...
“Stranger Things” costumes
Netflix's hit series "Stranger Things" led to binge-watch sessions last year and returns with a second season on Oct. 27. Spirit Halloween predicts characters and creatures from the series will be among the top trends this holiday.
The Demogorgon from "Stranger Things"
Some "Stranger Things" already have gone all out by creating their own original costumes, including this Demogorgon getup.
Barb from "Stranger Things"
Barb was considered a memorable character by many in the first season. Here's a Barb costume that's expected to be popular this year.
"Stranger Things" cosplay
Want to get in on the trend? You don't have to dress as a character. Joyce's living room makes for a fun, creative costume.
Another '90s nostalgia costume that's making waves? "Baywatch" lifeguards, thanks to the Dwayne Johnson film earlier this year.
Wonder Woman has always been a popular seasonal costume. With the success of her standalone movie, however, Diana Prince is expected to be one of the biggest 2017 options.
Wonder Woman is No. 10 on the list of adult costumes, and superhero attire is also the No. 1 children's costume this year, according to the National Retail Federation (NRF).
Wonder Woman won't be alone. Spirit Halloween predicts that empowering female icons such as Moana, JoJo Siwa and other heroines are expected to be a hit at Halloween parties.
Another girl-power costume choice this year: Belle is having a major moment thanks to Emma Watson taking over the role in this year's live-action adaptation of "Beauty and the Beast."
Spirit Halloween anticipates many trick-or-treaters donning topical and social media-inspired costumes, whether that means a "tweeting Trump" costume or another meme-worthy moment from his first year in office.
Political mashups, including this "piggyback Mr. President" costume, will also be trendy.
There's nothing wrong with a traditional choice. Dressing as a witch is the No. 1 trend among adult costumes for 2017, per NRF.
Whether you're the Caped Crusader himself or one of his nemeses, Batman characters are No. 2 when it comes to trending adult costumes this year, according to NRF.
Be it cat, dog, cow or sloth, the NRF ranks animal costumes at No. 3 for both children and adults this Halloween.
You can channel Johnny Depp's famous character or opt for a generic version. NRF says pirate costumes are the No. 4 choice among adults.
Spider-Man, Captain America and more Marvel heroes are the fifth most popular adult Halloween costume choice, according to NRF.
Whether it's a store-bought suit or an original creation, Marvel fans have tons of fun takes on their favorite superhero franchise.
Another traditional choice, the undead bloodsuckers are NRF's No. 6 ranking for top adult costumes.
No surprise here: Zombies made the NRF's top 10 list of Halloween costumes this year. Trick-or-treaters can try out elaborate, "Walking Dead"-quality makeup or settle for fake blood and old clothing.
"Star Wars" character
Characters from the "Star Wars" franchise are tied for NRF's No. 8 spot ...
NRF's No. 8 spot is also shared with DC superheroes that are not Batman or Wonder Woman.
"Hocus Pocus" costume
With news of a reboot in the air, this seasonal favorite will be an even more popular choice of costume, says Spirit Halloween.
'90s nostalgia costumes
In addition to "Hocus Pocus," Spirit Halloween anticipates even more '90s nostalgia costumes this year, including "Saved By the Bell" characters and "Space Jam" all-stars.
Social-media inspired costumes
From emojis to dog filters to social media stickers, outfits derived from viral trends will be present and Instagram-worthy this holiday, according to Spirit Halloween.
Slasher movie villains
Jason and Scream masks are cheap and easy. They also rank as No. 9 on NRF's list of top adult costume choices this year.
Spirit Halloween expects a surge in alien and out-of-this-world costumes this year. With a new "Star Trek" television series, what better time is there to dust off those Trekkie threads?