It’s Halloween, and the stars know it! As it happens every October 31, celebrities are dressing up as some of their favourite characters, people, things, superheroes – you name it! It’s the one time of year stars transform into anyone they want to be and they don’t disappoint! Everyone from Ariana Grande​ to Kylie Jenner and Mario Lopez among others have invested into a variety of impressive costumes, including Ariel from The Little MermaidBeyoncé and Jay-Z and yes, even a mailbox. That’s right!

So in case you need some last minute inspiration, scroll through the gallery to see how celebs are doing Halloween 2019!

Little Santi

Eva Longoria’s son, Santiago Bastón, got an early start to Halloween celebrations when he dressed up as Batman and now he’s back as the cutest mini vampire. “Here’s the second Halloween costume! I handmade his fabulous cape!! #VampireSanti#HappyHalloween” wrote a proud Eva next to a pic featuring mom and son.

MORE: Little girl nails JLo’s red carpet style in this epic Halloween costume, and it’s FLUFFY!

Ciara and Russell Wilson

Epic! Ciara and Russell dressed up as Beyoncé and Jay Z in their Apesh*t music video and killed it! The couple mimicked the scene in which the Carters stand in front of the Mona Lisa inside the Louvre but instead stood in front of a portrait of Barack and Michelle Obama.

RELATED: Are we seeing triple? JLo posts fans’ Jennifer Lopez-inspired Halloween costumes

Kylie Jenner

Ariel, is that you? Kylie transformed into The Little Mermaid complete with blue-eye contacts, a fiery red wig and seashell bra.

MORE: Kim Kardashian wins Halloween with this Elle Woods impersonation

Jason Momoa

The Aquaman star appeared on The Ellen DeGeneres Show as rockstar legend Elvis Presley in a light pink bedazzled suit iconic to the late artist. The actor revealed he dressed as 19-year-old Elvis during his first time at the Playboy Mansion in Los Angeles.

MORE: Get inspired by these LatinX pop culture icons for your Halloween costume!

Kevin Hart

The actor-comedian made his best impression of Dwayne “The Rock” Johnson circa the ‘90s. For his costume the Jumanji: The Next Level star wears blue jeans, a black turtleneck, a silver chain, fanny pack and wig to fully channel The Rock. And he even added the hidden napkin.

MORE: Katy Perry’s most jaw-dropping looks, just in time for Halloween

Jennifer Garner

The actress slipped into something boxy when she turned into a mailbox from the United States Postal Service.

RELATED: Avoid these candies to have a health(ier) Halloween

Ariana Grande

Another winner! The Thank You, Next singer is completely unrecognizable dressed as some sort of monster beast from Twilight Zone. Creepy!

Zoe Saldana

Zoe brought out her inner ballerina complete with a white tutu, tights and sheer pink top. Cute!

True Thompson

How cute is she? Khloé Kardashian’s adorable one-year-old is the cutest swan there ever was. 

The Lopez clan

Mario Lopez and his three children, Gia, nine, Dominic, six and three-month-old Santino Rafael turned into the Karate Kid for their Halloween costumes.

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