Demi Lovato as Pennywise
Demi Lovato/Instagram

When it comes to tricks and treats for Halloween, we consider it a trick and a treat when celebrities go all out with their costumes. We're talking ALL OUT. Take for instance Demi Lovato, who loves Halloween so much and is so good at coming up with ideas for Halloween costumes that she busts out costume changes for the occasion. We love it so much because why stick to just one great costume if you don't have to?

More from MamásLatinas: Powerful women Halloween costumes to inspire moms & daughters to be strong chicas

Then there are the famous moms who chose a theme for their entire families and wear matching costumes with their kids. How adorable is that? There was that one year when Kourtney Kardashian and her three kids looked so cute in matching superhero costumes. Or that time singer Pink's family recreated a classic movie.

Halloween is a time to have fun and let your imagination and creativity run wild. It's the one day of the year when you can literally transform yourself into whatever your heart desires. Get your scrolling finger ready to go through some of the best Halloween costumes ever from your favorite celebs. And then remind yourself that you don't have to be a celebrity to rock a phenomenal Halloween costume.

--Additional reporting by Karla Rodriguez

Round 1 of Demi Lovato's Halloween costumes. 1

In case you were wondering, Demi "don't play on Halloween." She believes it's her time to shine and shine she did in this Marie Antoinette look that was just one of her 2019 Halloween costumes.

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Demi looks scary good as Pennywise. 2

Pennywise from the movie It is scary, but Demi Lovato as Pennywise just looks scary good. This is how she followed up her Marie Antoinette round 1 look for Halloween 2019.

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Check out Chiquis as La Katri. 3

Chiquis Rivera opted for a Day of the Dead look as one of her costumes in 2019. She captioned this photo, "Le dicen, Katri! 🖤"

Calling nurse Cardi! 4

Cardi dressed in a too hot for an actual hospital nurse's costume in 2019. She looks fire, but it's what she wrote when she posted this picture that we really love: "I’m here to assist your shhhttaaaankin [butt]❤️."

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Camila Mendes gave Rick a sexy makeover. 5

The actress gave Rick of Rick and Morty a sexy update for Halloween 2019. She captioned this photo on her grid, "*pickle rick voice* I’M SEXY RICKKK (and yes that’s glitter on my chin for his ~iconic~ drool)." Not for nothing but she looks dang good in that blue wig.

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Kylie Jenner and daughter Stormi blew everyone out of the water with their costumes. 6

The mom and daughter duo dressed up two gorgeous pink and black butterflies for Halloween 2018. Stormi's name was said to be inspired by what the flap of a butterfly's wing can cause, so this costume on her first Halloween is so fitting. 

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Jennifer Lopez stays glamorous, even on Halloween. 7

Jennifer Lopez stays glamorous, even on Halloween.

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J.Lo dressed up as a haute couture skeleton for Heidi Klum's massive annual Halloween party. This is a simple look to recreate. All it takes are some great makeup skills. 

Demi Lovato turned up the sex appeal for Halloween 2017. 8

The singer dressed up as a cop and shared some steamy pics on Instagram.

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Shakira's family all dressed as different versions of Topo Gigio. 9

Nothing made our hearts melt more than seeing the gorgeous family of four all smiles while wearing their matching costumes in 2015. The way Milan is looking at his dad, Gerard Piqué, takes this to unimaginable levels of cuteness. 

Chiquis Rivera had a spooky Halloween in 2018. 10

The singer attended a Halloween party dressed as a clown with her then-boyfriend Lorenzo Mendez and his daughter, and the whole squad dressed in different outfits. 

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Eiza González slayed her Disney princess Halloween costume in 2017. 11

The actress looked so beautiful dressed as Princess Jasmine from Aladdin. She definitely has the perfect midsection for this belly-baring outfit. 

Christina Aguilera dressed up as the most epic unicorn in 2017. 12

Christina's look was so mesmerizing and it must have taken hours to complete this incredible look. 

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Based on this look, Sofía Vergara could easily be the next Wonder Woman. 13

She dressed as the superhero for a Halloween episode of Modern Family in 2016. There's no denying that she definitely has the curves to take this look to the next level.

Sofía's son, Manolo, recreated the look years later. 14

The funny guy not only dressed up as Superman in 2018, but he did a couple's costume with his dog and she went as Wonder Woman.

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Kylie Jenner nailed her Christina Aguilera Halloween costume in 2016. 15

Kylie recreated one of the looks from XTina's "Dirrty" music video and looked AMAZING. So much so that Christina even invited Kylie to her birthday party that December and asked her to dress up as her again.

Kim Kardashian celebrated Halloween 2017 dressed as Selena Quintanilla. 16

The reality TV star recreated the look Selena wore at her last concert at the Houston Astrodome in 1995. Some people were upset at the look saying the KKW Beauty founder shouldn't have dressed up as the Latina legend, but there's no denying Kim looked pretty great.

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Kim takes Halloween seriously. 17

Kim looked like a carbon copy of Cher when she dressed up as the singer in 2017. She even had her best friend, Jonathan Cheban, dress as Cher's ex-husband, Sonny.

Selena Gomez dressed up as a Chola. 18

Selena Gomez dressed up as a Chola.

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This is a simple look to recreate if you're trying to pull together a costume last minute. 

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Carlos Ponce had everyone laughing when he dressed as Scooby-Doo. 19

The actor shared a video of himself dancing along to DJ Kass' song "Scooby Doo Papa" and it was hilarious.

Remember when Adamari López dressed up as Daddy Yankee? It was too funny! 20

The TV personality showed up to Un Nuevo Día dressed up as the reggaetonero and it was incredible. Daddy Yankee sent her a message supporting the look, so everybody wins!

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Beyoncé dressed up as a black Barbie. 21

For Halloween 2016, Bey turned herself into a Barbie--and she killed it. She even had a life-size replica of a Barbie box created and posed inside of it. Genius!

Her husband, Jay-Z, also joined in on the fun and dressed up as Ken. 22

And not just any Ken at that, Jay was dressed as a Black Collector Edition 40th Anniversary Ken. Their daughter, Blue Ivy, was dressed as a young Skipper. Family goals, for sure!

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Demi had some fun for Halloween 2014 with some famous friends. 23

Demi dressed up as Lucille Ball, J.Lo dressed as a devil and Iggy was dressed as White Chicks. Demi captioned it: "Me, @jlo & @thenewclassic who had me dying tonight with that costume.. 👏👏👏😂😂😂 very fun party tonight.. #happyhalloween 👻👻💀💀🎃🎃❤️❤️."

Kourtney Kardashian teamed up with sister Kim for one of the most epic costumes ever. 24

The sisters recreated the looks Michael Jackson and Madonna wore when the music icons attended the 1991 Academy Awards together. The reality TV stars nailed it!

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Khloé Kardashian tried a his & hers costume with boyfriend Tristan Thompson. 25

The couple dressed as the Game of Thrones' characters, Daenerys and Khal Drogo, and they looked awesome.

Fergie did a his & hers costume with her little man. 26

The singer dressed up as Tinker Bell while her son, Axl, dressed up as Peter Pan. How cute is this?!

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Pink also knows how to do family costumes right. 27

The singer and her family dressed up as the characters in E.T. the Extra-Terrestrial. Pink dressed as Gertie, her husband, Carey, dressed as Elliot and they dressed their daughter, Willow, as E.T. Hilarious!

Kourtney Kardashian had a Power Rangers-themed Halloween. 28

Kourt and her three kids dressed as the superheroes in 2016. Look how tiny Reign is here! She captioned the pic: "Happy Halloween!! May the power be with you. ⚡️"

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Heidi Klum might just be the queen of Halloween. 29

Heidi Klum might just be the queen of Halloween.

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Jessica Rabbit might be one of the most overdone costumes ever but Heidi went all out and made herself completely unrecognizable for her annual Halloween party in 2015 in NYC.

Alessandra Ambrosio also gave the classic costume a shot in 2016, and she looked phenomenal. 30

"So much fun being #JessicaRabbit last night ✨👠💋💃✨🐰💥 ," she captioned the pic.

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Now for a personal favorite, Katy Perry as a Cheeto. 31

To be more specific, the singer dressed up as Flamin' Hot Cheeto. She fully committed to this look in 2014 and we love it.

Katy never disappoints on Halloween. 32

Just days before the 2016 Presidential Election, Katy dressed up as Hillary Clinton and it was hilarious!

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Bey went all out in 2017 as well. 33

She paid homage to rapper Lil' Kim and dressed up in several of her most iconic looks. We love seeing Bey pushing the envelope like this.

Paris Hilton also dressed up as a fellow celeb in 2013. 34

When Miley Cyrus was the talk of the town, Paris seized the opportunity and dressed up as the singer for Halloween and it was spot on.