Mariah Carey

Forget a quick splodge of face paint or mummifying yourself in loo roll - celebrities always bring their costume A-game for Halloween .

And this year we've got some corkers - Kim Kardashian as Dolly Parton , Gigi Hadid as The Mask and Jessica Biel reinvented as her own husband Justin Timberlake in his N-Sync days.

We're being trick-or-treated to a gory display of spine-tingling delights.

Granted they have the time, money and make-up artists to totally transform Themselves - But they've made the effort - so let's ogle.

The ONLY place to start is with Heidi Klum . She never phones it in and throws arguably the spookiest (or at least The Most papped) party in New York .

Can we just take a moment to appreciate the prosthetics - she spent hours with her team getting the zombie look Together .

Her guests don't disappoint either. .

Heidi Klum 's costuming sets The Bar high for every other celebrity Out There .

Challenge accepted.

Ariana Grande entered The Twilight Zone this year, recreating what can only be described as a pig-ish face from "Eye of The Beholder ", an episode from the series that originally aired in 1960.

Ciara and her husband Russell Wilson paid tribute to Beyoncé and Jay-Z.

While Jessica Biel kept things close to home. She was her husband for Halloween .

After revealing she doesn't know any of Justin Timberlake 's old boyband lyrics, Jessica dressed up as him in his N-Sync days. He went as a microphone in case she wanted to sing "bye, bye, bye" - the Only Words she admits to knowing.

Jessica wishes she'd kept the revelation to herself.

Jennifer Aniston - who only recently joined Instagram - Put it to good use by sharing a throwback to her 17-year-old Halloween costume.

Aquaman star Jason Mamoa channelled Elvis dressed in a pink jumpsuit backstage at The Ellen Degeneres Show.

Lil Nas X went as a piece of hip-hop history: channelling what can only be described as an iconic look from rapper Cam'Ron.

Gigi Hadid looked almost as rubber-faced as Jim Carrey 's The Mask for Kendall Jenner 's Halloween party in Los Angeles .

The Kardashians always Put on a good show, and this year Kourtney gave us Dolly Parton .

Kim went as Reese Witherspoon 's Elle Woods from Legally Blonde - and really committed to The Role .

Kylie Jenner went as The Little Mermaid .

And her daughter Stormi - we'll just leave this here.

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Source of news: bbc.com