Whether it's spooky season veterans like Heidi Klum making her costumes gorier every year or the Kardashians putting a ghoulishly sexy spin on creepy classics, celebrities are always one to go big on Halloween.

While we rely on the stars for some major terrifying inspiration for the big day, they also happen to turn to each for some creativity for their costumes. Over the last few years, there has been a surge of celebrities dressed up as other celebrities for Halloween - and while the results may not exactly be scary (we'll let that slide), we're still obsessed with their attention to detail.

I mean, back in 2016, Kylie Jenner definitely had us doing a double-take when she dressed up as Christina Aguilera in her leather chaps and black-streaked blonde hair from her Dirrty era. We were also impressed with Rita Ora's efforts in channelling rapper Post Malone, and Kate Moss nailed Cara Delevingne's party-girl look. Obsessed!

And that's not it - the likes of Elton John, Billie Eilish, and Lil' Kim have provided inspiration for other stars when it comes to dressing up, not to mention pop star icons Britney Spears, Michael Jackson and Katy Perry. Even the Royal Family have become muses for some celebrities. So join us as we look back at the best 31 celebrities dressed up as other celebrities for Halloween.

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