Hilary Duff's Husband Matthew Koma Dresses Up as Her Ex Joel Madden for Nicole Richie Double Date

Hilary Duff and Matthew Koma actually do wanna be just like Good Charlotte. 

The Lizzie McGuire alum and her husband of five years pulled off the most epic Halloween costumes, dressing as brothers Benji Madden and Joel Madden. But it wasn't just the costumes that turned heads but where they wore them, as the duo showed off the looks while out to dinner with Joel—whom Hilary dated from 2004 to 2006—and his wife Nicole Richie.

Matthew shared his and Hilary's looks to his Instagram Story Oct. 30, tagging the Good Charlotte members as well as Nicole. In the snap, Matthew and Hilary—who are parents to Banks, 5, Mae, 3, and Townes, 5 months, along with Luca, 11, from Hilary's previous marriage to Mike Comrie—donned matching sunglasses, while Matt channeled Joel with his MDDN hat, leather jacket and chain necklace. Hilary took on the role of Benji, also wearing a black cap, chain necklaces and leather vest. 

And of course, Joel and Nicole—who have been married since 2010 and share kids Harlow, 16, and Sparrow, 15—were delighted by the costume tribute.

The Simple Life star shared a picture of Hilary and Matthew to her Instagram story, which Joel reposted, writing, "Protect @matthewkoma and @hilaryduff at all costs," along with two crown emojis.

Despite the fact that Hilary and Joel dated over two decades ago, the couples have proven time and time again that they do indeed have a fantastic friendship.

For Joel's birthday in 2023, Matthew shared several photos celebrating the "Girls & Boys" singer—including a throwback of Joel and Hilary from when they dated in 2006—writing, "It's not even that weird that you dated my wife @joelmadden. It just makes me feel closer to you."

The quartet even enjoyed a date night together in 2022, further cementing the friendship. And according to Hilary, she has a fantastic relationship with Joel, Nicole and their whole family.

"We're neighbors. And we actually hang out all the time," she shared on Watch What Happens Live in 2023. "I was just in her driveway honking her to come drink wine with us the other day."

And over the years, she, Joel and Nicole have come to enjoy her husband Matthew's trolling ways, with Hilary recalling one hilarious moment in particular.

"Right when they moved in, for some reason, Matt photoshopped a picture of Joel and Benji in a photo with me on Valentine's Day," she laughed. "'Happy Valentine's Day, honey.'"

Hilary added, "Now they just know that Matt is a big troll and likes to have lots of fun."

Keep reading to see what the rest of your favorite stars are dressing up as for Halloween this year.

The model came out and let it show in her Diana Ross costume.

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

The Home Alone alum's Joe Burrow costume was a total touchdown.

Why so serious? The "My Type" rapper—dressed as Joker from The Dark Knight—would like to know.

The Fifth Harmony alum was the hostess with the mostess in her showgirl costume at BACARDÍ Rum’s Halloween bash in Miami.

The Scandal costars aced their Challengers group costume.

Wicked costumes were pop-u-lar this Halloween. Just ask the Love actress and the "Vampire" singer.

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."

The "Espresso" singer was working late dressed as a Playboy Bunny.

She also underwent Olivia Newton-John's classic Grease makeover.

The Think Like a Man actress thought likeWade Wilson, dressing up as Deadpool.

The couple were off to see the Wizard as Dorothy and the Tin Man from Wizard of Oz.

Who's that girl? It's the New Girl actress dressed as The Real Housewives of Salt Lake City's Angie Katsanevas.

The Property Brothers star was looking dead cool in his Wolverine costume.  

The Rhode Beauty founder and model were sliving their best lives as Paris Hilton and Nicole Richie in their reality TV show Simple Life.

The Bachelor winner was the most stunning belle of the ball.  

Accio, Harry Potter! Or as the rapper (born Gerald Gillum) put it on Instagram, "Gerry Potter."

Four scores and seven years ago—or rather, in 2024—the Modern Family alum and his husband dressed as Abraham Lincoln and Mary Todd Lincoln.

The Oscar winner was feeling witchy with her cat.

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

The Victoria's Secret Angel was the perfect Black Swan.

The couple stepped out as Christine and the Phantom of the Opera.

The Jersey Shore star dressed up as a patient who was "sick of these b--ches."

This influencer just pulled Lady Gaga's iconic meat dress out of the freezer.

The devil may wear Prada, but the Oscar winner dressed as a ghoulish version of the Statue of Liberty for Halloween.

The model proved her whole life is a dark room, dressing up as Lydia Deetz to celebrate her 37th birthday at Airbnb's Beetlejuice, Beetlejuice experience.

The Love Island USA contestant was just Ken this Halloween, captioning his Instagram post, "I'm Kenough."

The Pretty Little Liars alum and her little lambs were too cute in their matching costumes.

The Little Mix singer and her son Axel channeled Lady Gaga and Bruno Mars in their "Die With a Smile" looks.

The pair debuted an Alice in Wonderland couples costume.

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