You'll Be Mad for Selena Gomez and Benny Blanco's Alice in Wonderland Halloween Costumes

Selena Gomez and Benny Blanco went down a rabbit hole to find their perfect couple's Halloween costume.

The two dressed up as Alice and the Mad Hatter from Tim Burton's 2010 live-action movie adaptation of Alice in Wonderland, as seen in photos the Only Murders in the Building actress shared on Instagram Oct. 26, five days before the holiday.

Channeling Mia Wasikowska and Johnny Depp's characters, respectively, Selena sported a blonde wig with a black velvet Jennifer Behr Rochel headband, an off-the-shoulder, pale blue, tulle dress and chunky white heels with black tips. Benny wore a poofy, curly red wig, a black top hat and clown-like makeup, plus a mismatched suit with a tan jacket.

Quoting one of Alice's lines from the film, Selena captioned her post, "Curiouser and curiouser.."

This marks the first time the "Come and Get It" singer has debuted a Halloween couples costume and comes more than a year after she and the record producer began dating.

Selena, 32, shared photos of their whimsical looks two days after they stepped out for a date night at the Rare Impact Fund Benefit in Los Angeles. Benny, 36, did not walk the red carpet with his girlfriend. However, the pair remained close inside the event and also showed PDA.

While the two have yet to make their red carpet debut as a couple, Selena has often brought her boyfriend as her date to celebrity events, such as the 2024 Emmys.

The two privately began dating in July 2023 and went public with their romance the following December. "He is my absolute everything in my heart," Selena wrote on Instagram at the time. "Why has he been the best thing that's ever happened to me?"

In May, after host Howard Stern told Benny that he's "predicting marriage" for him and Selena, the songwriter replied, "You and me both."

He publicly professed his love for the singer again on social media last week. On an Oct. 22 TikTok video showing a throwback clip of Daryl Hall singing the lyric "It's you and me forever" while performing "Sara Smile" with then- Hall & Oates bandmate John Oates, Benny wrote, "Me to my girlfriend a million times a day."

Read on to see more stars celebrating Halloween 2024...

The couple got into the spooky spirit at their Halloween bash with Casamigos.

The model and her husband matched as Mr. and Mrs. E.T. at her annual bash in New York City.

Me-ow! The Kardashians star was the purr-fect black cat for Halloween.

The Oscar winner blew into the Broadway opening of Teeth dressed as Storm from X-Men.

The Game of Thrones alum channeled The Matrix, writing on Instagram, "Red or blue pill."

Try everything? The Kissing Booth actress took that advice seriously, channeling Zootopia's Flash Slothmore.

The country singer followed her arrow as an armadillo.

The Scandal costars aced their Challengers group costume.

With the 2024 U.S. presidential election just days after Halloween, the "Roar" singer reminded Americans about their civic duty with her patriotic costume.

The "WAP" rapper looked red-hot in her Jessica Rabbit costume.

The High School Musical alum's family—including kids Jupiter and Emerson—were all in this together, dressing up as characters from The Wizard of Oz.

Love and marriage go together like a horse and carriage. Just ask the HGTV hosts, who dressed as Peggy Bundy and Al Bundy from Married... with Children.

The "Rack City" rapper's heart grew three sizes as the Grinch during Darren Dzienciol’s Haunted Hotel presented by Utopia and Casa Azul Organic Tequila, at The Fairmont Century City in Los Angeles.

Don't be late to check out the pair's Alice in Wonderland couples costume.

The Oscar winner was feeling witchy with her cat.

The Big Bang Theory alum dressed as her fiancé, while he looked the part of the actress in pink. Meanwhile, their daughter Matilda rocked a unicorn costume.

The "Shape of You" singer had the perfect response to the viral AI-generated meme of himself. As he put it on Instagram, "Haters will say its AI #halloweenbruv #feltcutemightdeletelater."

Prepare to be razzle-dazzled after the actress slipped back into her Jenna Rink dress from 13 Going on 30.

Posh Spice and the soccer star wore scary masks to celebrate Halloween with their daughter Harper.

The Inglorious Basterds actress was ready for her first day of classes at Nevermore Academy dressed as Wednesday Addams.

The I Know What You Did Last Summer star slayed with her Lydia Deetz costume.

"Swifties get me," the Buffy the Vampire Slayer alum joked of her couples costume with her husband, which was a reference to Taylor Swift's "So High School" lyric, "You know how to ball, I know Aristotle."

Halloween was a dog day afternoon for the Destiny's Child singer, who dressed up as Bluey's mom opposite of her son Noah.

The Emily in Paris star spiced up her Halloween by channeling both Spice Girls' Emma Bunton and Victoria Beckham.

The 2 Broke Girls alum and her rocker husband partied hard as a cat and a wizard, respectively.

Jinkies and jeepers! The sisters were the perfect mystery solvers as Daphne and Velma from Scooby Doo. 

The former Nickelodeon star looked unrecognizable as the titular villain in Longlegs.

In girl world, the "Havana" singer paid tribute to Mean Girls by wearing Regina George's Halloween costume.

The friendly exes dressed as Lara Croft and a wolf, respectively, to take their daughter Lea trick-or-treating.

There was no doubt the "Hollaback Girl" singer was going all out for Halloween, dressing up as Snow White to throw a party.

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