The best celebrity Halloween costumes of 2017

It's not just us mere mortals who love to don scary, silly and sexy costumes at Halloween.

The rich and famous also enjoy getting into the Halloween spirit, and they usually go all out!

Here's some of the best celebrity costumes we've spotted so far.

Academy Awards 1991

A post shared by Kourtney Kardashian (@kourtneykardash) on Oct 29, 2017 at 6:42pm PDT

Kim and Kourtney Kardashain:

Kim sported a number of costumes this weekend. She teamed up with her friend Jonathan Cheban for a Sonny and Cher tribute, and she also stepped out as R&B icon Aaliyah. But it's her Madonna costume that we love the most! The reality star joined forces with her sister Kourtney, who rocked a Michael Jackson costume, to go as the King and Queen of Pop.

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A post shared by Gwyneth Paltrow (@gwynethpaltrow) on Oct 29, 2017 at 10:18am PDT

Gwyneth Paltrow:

Gwyneth went as her character in 1995 movie Seven. The actress played the wife of a detective who is beheaded by a serial killer, with her head ending up in a box. Creepy!

I love you Dolly! ❤️❤️❤️

A post shared by elliegoulding (@elliegoulding) on Oct 28, 2017 at 6:36pm PDT

Ellie Goulding:

Ellie dressed as country legend Dolly Parton. We love this!

Don’t tell me it’s a Fancy dress Party! Poison Ivy came out early this year! P.s performing in this wasn’t that easy! Lol #anywhere #kisshousepartylive

A post shared by Rita Ora (@ritaora) on Oct 26, 2017 at 3:15pm PDT

Rita Ora:

Rita performed at the Kiss FM House Party Live as a gorgeous Poison Ivy.

It was time... This Halloween I thought I should respond to the comparisons with Disney Pixars biggest bully next door and go as Sid from Toy Story! In addition to having a laugh at my expense I wanted to try and raise some attention for a cause I am an ambassador for! @antibullyingpro As this month is Bullying Prevention Month in the USA and Antibullying Week in the U.K. is just around the corner, I would really appreciate it if you could please give them a follow before you like or share and help support the cause to make school a safer and happier place for young people Thank you! ? @antibullyingpro #Happyhalloween #Antibullying

A post shared by Will Poulter (@willpoulter) on Oct 28, 2017 at 9:44pm PDT

Will Poulter:

The actor went as bully Sid from Toy Story after being told he was the spitting image of the animated character. He's also raising awareness of bullying. Fair play!

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A post shared by Martin Garrix (@martingarrix) on Oct 26, 2017 at 2:17pm PDT

Martin Garrix and Dua Lipa:

The reported couple dressed up as Beetlejuice and Lydia from the 1988 Tim Burton movie.

Cover image and images on Facebook and Twitter via @martingarrix on Instagram