As excited as we are to see stars bring some Kenergy this Halloween, we'd argue there's something even more fantastic than life in plastic. 

Because what feels more stars-are-the-same-as-us-mere-mortals than seeing your favorite celebrity all dolled up as their favorite celebrity? Take Kim Kardashian, who has marked Halloween dressed as Madonna, Aaliyah, Selena Quintanilla and her "number one style icon" Cher. 

"She's always had the sickest style," the reality star said of turning back time to dress as the musician for a 2017 cover of Harper's Bazaar Arabia. "I'm obsessed with her."

And then there are the stars who see the holiday as an opportunity to show their loved one that they're obsessed with them. See: Jessica Biel doing her best Justin Timberlake impression in a permed wig as her husband gamely dressed as her microphone. 

"This was all his idea," she revealed days later during an appearance on The Late Late Show with James Corden, saying the NSYNC standout said, "'You're gonna do this.'"

Still, she was the one to source the costume. 

Flying from her New York set in 2019 to make the annual Casamigos Halloween Party in L.A., "I went from the airport, I changed in the car," she shared, "but I surprised Justin because I remembered we have that exact jumpsuit that he wore in storage. So, I pulled it out and it was the real one."

And she wasn't the only one committed to authenticity. Because when stars pay homage to one of their own, they go all in to make sure they've done it justice. (We see you, Ciara!)

So treat yourself to a bit of Halloween fun by checking out all the famous faces who have walked a mile in another celebrity's shoes. 

With the help of his girlfriend, the Jonas Brothers' lil' bro trolled his older bro and his ex (who he dated briefly in 2008) for Halloween 2022.

From one twin flame to another. Megan and her fiancé dressed up as the former couple at the 2022 Casamigos Halloween party.

The newlyweds dressed up as the late couple at the 2022 Casamigos Halloween party.

The pop star channeled the late Anna Nicole Smith for Halloween, recreating the Playboy Playmate's infamous wedding in 1994 when she married 89-year-old billionaire businessman, J. Howard Marshall.

Just days after getting engaged, Kravis decided to celebrate spooky season early by dressing up as another iconic (though tragic) couple.

"Throw away the key," Travis wrote on Instagram after revealing his outfit. Kourtney added, "Till death do us part."

Sid Vicious, whose real name is Simon John Ritchie, was a member of the punk band Sex Pistols, and Nancy was his girlfriend. In 1978, she died by stabbing, with Sid suspected of her murder. He died of an overdose in 1979.

For the unforgettable look, the Blink-182 rocker opted for black clothing from head-to-toe with a cigarette for an accessory. As for Kourtney, she sported a black, mesh short-sleeve top with a matching bra underneath. When it came down to glam, Kourtney's blond wig was perfected by hairstylist Glen Coco and Tonya Brewer created her makeup look for the night.

The pair even sported handcuffs from Enfants Riches Déprimés to re-create looks from the 1986 feature film Sid and Nancy, which explored the doomed real-life relationship.

The Real Housewives of Beverly Hills star dressed up as her co-star Kathy Hilton's famous daughter for the premiere of Halloween Kills. 

The then-pregnant model channeled Demi's infamous 1991 nude pregnancy photo shoot for Vanity Fair for her costume in 2020. 

Talk about paying attention to detail!

The "Goodies" singer and Seattle Seahawks quarterback went to great lengths for their 2019 costumes, taking up the ultimate challenge of dressing up as Bey and Jay. 

Ciara and Russell shared photos and videos of them recreating the musical power couple's "Ape Sh*t" music video. The two recreated one specific scene from the video—the one where Bey and Jay-Z are seen standing in front of Leonardo da Vinci's "Mona Lisa" at the Louvre Museum in Paris. But in case you didn't notice—instead of the Mona Lisa—the Wilsons are standing in front of a portrait of the former President of the United States Barack Obama and former First Lady Michelle Obama.

"From the Wilsons to the Carters to the Obamas... Much Love & Respect. We goin Ape $#!% #HappyHalloween," Ciara captioned one of her Instagram posts.

The Bachelor Nation couple dressed up as the famous exes for Halloween 2020, reenacting a virtual reunion that was part of a Fast Times at Ridgemont High table read benefit that they had taken part in over a month prior.

In 2017, the Keeping Up With the Kardashians star decided to pay homage to several icons, including Madonna channeling her Marilyn Monroe-like "Material Girl" look and the late Aaliyah from her 2000 music video "Try Again."

Netflix's wildly popular docuseries Tiger King gets a Kar-Jenner spin thanks to this feisty group, which rocked stripes in 2020. 

Kylie got down and "Dirrty" for the holiday in 2016, paying tribute to the singer by totally nailing her early 2000s look, including faux facial piercings, beach blonde and jet black tresses and, of course, the leather chaps. And the costume was approved by the inspiration herself. 

"YAASSSSS".....Killin it @kyliejenner," Christina wrote on Instagram. "Yes to dirrty 2016!! Get it girrrl!!!"

They grow up so fast. For one of their looks for 2020, the sisters perfectly recreated their past Halloween costumes.

The model channeled the Real Housewives of Beverly Hills star for Halloween 2020. And yes, she totally owned it.

For Halloween in 2019, the famous pair threw it back to J.T.'s *NSYNC days, but with a twist. Jessica dressed as her hubby (permed wig and all), while Justin served as her microphone and a group of their friends dressed as the remaining four boy banders.

From the multicolored wig to the hot pink bodysuit, Lil Nas X nailed his Nicki Minaj Halloween costume in 2020. 

She likes it like that! Ciara recreates Cardi's iconic Invasion of Privacy album cover for Halloween 2020. 

It takes two...to pull off a Halloween costume this epic. The duo transform into the famous twins for Heidi Klum's annual Halloween party in 2019. 

It was the dress that started Google Images and the stylist slayed in 2019 when he paid homage to the iconic look from J.Lo from the 2000s Grammys. 

Like mother, like daughter! The makeup mogul's then one-year-old daughter, got all dolled up for the fun and festive season, and recreated her mother's iconic 2019 Met Gala lewk.

Quik is the name! The actress paid tribute to the 49-year-old rapper with her Halloween costume in 2019. "You know @djquik had to roll through and show @gabunion some #CaliforniaLove for her Birthday," the Little star wrote.

Groovy! The model and actress channeled the legendary Twiggy in 2019. From her colorful mod-style mini-dress to her whimsical makeup, Valletta knocks it out of the park with this lewk.

Normani served bawdy and face as she recreated an iconic Naomi Campbell fashion lewk for the spooky holiday in 2020. "Campbell - 1991," the pop star captioned her Instagram photos of her fashionable get-up.

The Kylie Cosmetics founder and her BFF got into spirit of Halloween in 2019 by dressing up as Madonna and Britney Spears from their iconic 2003 MTV VMAs.

Rinna from the Block! The Real Housewives of Beverly Hills star channeled the one and only Jennifer Lopez for the 2019 Casamigos party.

The Real Housewives star dressed up as her pal and co-star for Halloween in 2018. In response to Lisa's costume, Erika commented, "I LOVE YOU!! AMAZING!!"

I got you babe! Making their red carpet debut as a couple, the pair makes an entrance at the AHS 100th Episode celebration in Sonny and Cher costumes. Alas, they called it quits months later. 

Mic drop! The 37-year-old actress shows up and shows out for the Casamigos party wearing an ensemble inspired by her husband's *NSYNC days.

A major pop culture moment from 2019! The Vampire Diaries alum finds the humor with her Halloween costume as she and her gal pal recreated the Chanel Fashion Week Show prankster. You know, where Gigi Hadid totally stopped a crasher from ruining the runway.

Nina is a "bad guy"...The actress dressed up as singer Billie Eilish for the Casamigos party in 2019.