Guess Who

Before they were superstars, these adorable kiddos loved dressing up for Halloween, but can you tell who these celebs are -- back before they were in front of the flashing lights?

Demi Lovato, Kendall and Kylie Jenner and Ethan Slater are just a few of the lil' tykes who sported a cute costume back in the day -- but good luck guessing which one is them!

This actress is known for her thrilling work in horror movies ... some may even deem her as the ultimate "scream queen!" But is this witchy gal who you think it is?

Even as a dressed-up princess, this singer couldn't "ignore the crazy visions of her living in LA" one day ... Can you guess who she is?

Before this cute festive kid with face paint turned into an American YouTuber and singer, he was just 15 years old, starting his YouTube channel, before heading off to Hollywood to start his entertainment career.

While his early content consisted of baking and his everyday life in small-town Texas, he now has garnered millions of views, like his "Heather" music video, which has over 172 million views.

He's a known "Swiftie," and when he dropped his "Kid Krow" album, he got a personal shoutout from none other than Taylor herself!

Disguised in this crazily-altered photo is a celebrity couple who take it all the way back to the year 2000 ... Given the following clues, see if you've got what it takes to unscramble the unknown duo!

They first met working together on a slasher film, and as spooky as it sounds: you better watch out, because they know know what you did last summer! These hot parents have two kids and recently enjoyed date night, posing in front of Haunted Mansion Holiday at Disneyland Park.

Need one more clue? “Scooby Doobie Doooo!”

These bad bunnies are beyond hoppy you've shown up to play a little game of 'Guess Who!' Here's the catch: they're showin' nothin but leg and tail! Think fast as you bunny hop through the fluffed-up photos ...

From actresses to internet stars and everything in between, these feisty bunnies are curvy and lean! Bella Thorne, Kylie Jenner and Paris Hilton are just a few fluffy friends who've opted in on the popular costume ...

Dust off your celeb skills and check out our hoppin' gallery to see which stars "Pop Hop, Lock and Dropped It" as bunnies!

Before this Texas native and cutie pie in pink turned into an American actress and singer, she was moving to Edgewood, Florida with her rents and lil' bro, and dressing up as her favorite princess for Halloween.

Contrary to her days as a princess, one of her most recognizable roles was playing a vampire, where she drank the blood of Ian Somerhalder's character. She also played the fantasy roles in "The Originals" and "Legacies."

Musically, this shining star released her debut album, "It's Always The Innocent Ones" back in 2006 and was a backup singer for Miley Cyrus in 2007-2008.

Before this lil' star with his sword was an international star, he was just throwin' on his tricorn, fighting his way to be a musician and growing up in England ... Arr you prepared to guess this matey?

Aside from his superior singing skills, he's written songs for some of music's hottest stars like The Weeknd, Taylor Swift and Justin Bieber -- whom he's also collab'd with vocally, but perhaps you don't care.

One of his top songs is a popular and perfect wedding song.

These hot Hollywood couples have stepped out of their everyday garments and are rockin' some adorable and almost too hot to handle Halloween Costumes! They came to slay, but can you nail down the unknown duos in this fun game of "Guess Who?!"

Take a swipe through our gallery and peek-a-boo at which cute couples absolutely crushed their spooky lewks. Can you can guess which celeb duo is on top of their costume game?

Come with some celeb knowledge and guess to impress as you embark on some crazy-cuteness. Keep both eyes peeled and you will be treated (or tricked) by some classics like Woody and Bo Peep, Albus and Remus, and an A-list singer dressed as a pickle with her man ... they're kind of a big dill!

Before this sweet boy in his proper baby outfit turned into a socialite and real estate agent, he was just roaming the halls of the Waldorf Astoria, attending elite schools and growing up with two older sisters and one younger bro.

You may hear or read more about his two famous sisters, as he's more low-key, but he still cashes in on his real estate earnings. He has 3 children -- welcoming his 3rd earlier this year with wifey, Tessa.

Need another clue? His last name is a famous Hotel chain ...

Grab your popcorn, because inside this popular pumpkin head is a Houston, Texas gal known to put on one hell of a show! She recently took the mic as Britney Spears, so 'you better work' and come correct to unveil this scrambled celeb!

You can almost guarantee she's having a Hot Girl Fall -- recently going knuckle deep in some popcorn -- while slaying a jack-o-lantern on top (her Halloween go-to trick). Your ratchet may help loosen up this rappin' pumpkin.

Her songs may be savage, but that doesn't stop them from going viral ...

Before this cool boy in his suit turned into a rapper and actor, he was just chillin' on his dad's lap in Champaign, Illinois before moving to Atlanta, Georgia and studying music management at Georgia State University.

He's been a staple in the rap and hip hop industry for years, but he's also hit the big screen -- most notably as Tej Parker. He's too fast for y'all, so you better "get out the way." He's in his late-40s, but that doesn't stop him from sharing a shredded shot on the 'gram.