• Kim Kardashian West wore several outfits for Halloween this year.
• She went with a musical icons theme for all of her costumes.
• She dressed up as Cher, Aaliyah, Madonna, and Selena.
• She ditched the elaborate costumes for a simple pair of mouse ears while trick-or-treating.
• Her sisters also had some impressive costumes.

Leave it to Kim Kardashian West to turn Halloween into a weeklong multi-costume event.

Kim decided to celebrate by sticking to a musical icons theme for all of her costumes. From Cher to Selena, she fully committed to every look by recreating some of their most memorable outfits.

Here are all of her impressive costumes.

Cher

Kim's first costume was a stunning nod to '70s-era Cher alongside her best friend Jonathan Cheban as Sonny Bono. Kim looked almost identical to the legendary singer, though that's hardly a surprise following her recent Harper's Bazaar Arabia cover.

The impressively accurate costume even caught the attention of the "Believe" singer herself.

Aaliyah

The most controversial look was this ode to the late R&B singer Aaliyah, which ignited a frenzy on Twitter when some people expressed concern that it bordered on cultural appropriation. Kim recreated the outfit from the singer's "Try Again" music video.

Madonna

Kim's next look was the queen of pop herself: Madonna. Though Kim looked stunning as the "Material Girl," most of the props went to her sister Kourtney as Michael Jackson. The two recreated the pair's iconic outfits from the 1991 Academy Awards.

Selena

Kim's last costume was this iconic look from Selena. Though Kardashian is certainly pulling off the outfit, Demi Lovato had already made headlines for her equally impressive Selena costume.

Bonus look: Kim's a mouse, duh

Kim decided to ditch the musical icons theme while trick-or-treating. She traded in her extravagant costumes for a pair of lace Minnie Mouse-style ears and some face-painted whiskers. 

Of course, Kim wasn't the only Kardashian to pull out all the stops for Halloween. Here are some of the best looks from the rest of the Kardashian-Jenner family.

Khloe Kardashian dressed up as Daenerys Targaryen from "Game of Thrones," alongside Tristan Thompson as Khal Drogo.

Kourtney Kardashian and Younes Bendjima stepped out in a look inspired by Bonnie and Clyde.

Kylie Jenner dressed up as an angel, while best friend Jordyn Woods was at her side in a devil costume.

Lastly, Kendall Jenner's Halloween outfit was inspired by Buttercup from "The Powerpuff Girls."

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