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Hannah Montana, Lilly, and Oliver

Life's what you make it, so let's make it rock this Halloween. Go as this teenage rockstar and her friends Lily and Oliver in glitzy throwback get-ups and wigs. Just be prepared to get "The Best of Both Worlds" stuck in your head all night.

Minions

The three amigos of animated film are extremely hard *not* to recognize. Just get your two silliest friends, make up your own language, grab some overalls, and don't forget the goggles.

Destiny's Child

If you show up to Halloween like this, there's a good chance they won't be ready for this jelly.

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Barbies

It's the year of BARBIE! Embrace summer's hottest movie debut and the Barbiecore trend by going as a group of Barbies in hot pink.

Charlie's Angels

Hello, Charlie! Three badass women who also happen to rock the cutest Y2K fits to ever grace the movie screen coming right up.

Love Island Contestants

Grab your favorite bikini and get mic'd up because three new bombshells are preparing to enter the villa. (Spoiler alert: it's you and your besties.)

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Gossip Girl

Hey, Upper East Siders! Gossip Girl here. Whether you're #TeamReboot or #TeamOG, there's plenty of iconic fashion looks to go around. XOXO.

Sam, Clover, and Alex from Totally Spies

Y2K called, and it wants Totally Spies to make a comeback. The trio had outfits that literally never missed! You could also opt for their iconic green, red, and yellow jumpsuits for a look more people are familiar with.

T-Boz, Left Eye, and Chili from TLC

Sorry, no scrubs allowed when you and your besties are channeling your inner girl group.

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Edward, Bella, and Jacob

You better hold on tight, spider monkey, because we're going full vamp (or wolf) for arguably one of the best trios to grace the movie screen.

Lizzie, Isabella, and Paolo

This costume is what dreams are made of! Go monochrome and throw on purple pants, a blazer, and a crop top, and for Lizzie’s doppelgänger, get a green jacket and skirt.

Bridgerton Characters

Get all dolled up in your best Regency-era finery to channel this Bridgerton trio.

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Blossom, Bubbles, and Buttercup

The Powerpuff Girls are here to save the day! All you'll need for this cute cartoon costume are some blue, pink, and green coordinating ensembles with some tube socks and Mary Janes.

Winx Fairies

If you're a fan of the Netflix series, then this adorbs costume idea is a must.

Mabel, Charles, and Oliver

The trio from Only Murders in the Building all have distinct senses of style that would be so fun to turn into a Halloween costume.

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Unicorns

With some tulle skirts, glitter, and horns, you and your crew can become a trio of sparkly unicorns.

Angelica, Peggy, and Eliza

You and your two besties definitely won't miss your shot if you take on the Schuyler sisters from Hamilton.

Cosmo, Wanda, and Timmy

Don't even pretend like you can't still sing the whole Fairly OddParents theme song.

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Benny, Beth, and a Chess Piece

Wanna do something totally original with your besties? This Queen's Gambit-inspired lewk is calling your name.

Fabiola, Devi, and Eleanor

What could be more fun than taking on the UN trio from Never Have I Ever?

Corinne Sullivan is an Editor at Cosmopolitan, where she covers a variety of beats, including lifestyle, entertainment, relationships, shopping, and more. She can tell you everything you need to know about the love lives of A-listers, the coziest bedsheets, and the sex toys actually worth your $$$. She is also the author of the 2018 novel Indecent. Follow her on Instagram for cute pics of her pup and bébé. 

I'm Cosmopolitan's Associate Fashion Editor and write about any and all trends, major celeb fashion moments, and why wide-leg jeans are basically the best. I originally moved to New York City to audition for RENT, only to find out that the play closed 10 years ago. 

Chaise Sanders is an Associate Editor at Cosmopolitan, where she covers anything from lifestyle and beauty to entertainment and style. Wanna upgrade your skincare game? She's got you covered with the best facial cleansing brushes. Or maybe you're in need of a new true crime show to binge? Got that covered too! Prior to joining the Cosmo team, Chaise was an editor at Country Living (also part of the Hearst fam) where she interviewed celebs like Dolly Parton, LeAnn Rimes and even Martha Stewart. Now, as one of the Big Apple's newest residents, there's a good chance that you can catch her checking out an Insta-worthy cafe or spending way to much $$$ in vintage stores.

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