Stars Suit Up at the 2020 SAG Awards: Millie Bobby Brown, Margaret Qualley and More

ET breaks down all the best menswear-inspired ensembles from Sunday's red carpet.

The 2020 SAG Awards were a stylish affair!

The A-listers stepped out for the annual awards show in Los Angeles on Sunday, with stars like Scarlett Johansson turning heads in a plunging Armani Privé gown, Jennifer Lopez dripping in over $9 million worth of Harry Winston diamonds and Jennifer Garner wowing in a red Dolce & Gabbana dress to mark her first SAG Awards appearance in six years.

While we couldn't get enough of their gorgeous gowns, we also noticed another red carpet trend -- powerful, jaw-dropping pantsuits! Now, ET's breaking down all the best menswear-inspired ensembles.

Millie Bobby Brown was one of the first to hit the red carpet, wowing in a custom white silk taffeta coat dress and pants, brooch and satin pumps by Louis Vuitton. The Stranger Things star completed the look with a stunning diamond necklace and ring by Cartier.

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Her co-star, Maya Hawke, followed suit, stepping out in a strapless Giambattista Valli number. She accessorized with silver-embellished heels and Swarovski jewelry.

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Once Upon a Time in Hollywood star Margaret Qualley rocked head-to-toe Chanel, consisting of a shimmering suit with floral pins. She topped off the look with edgy winged eyeliner and a pink pout, pulling her brunette locks into a low ponytail.

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Meanwhile, Qualley's 10-year-old OUATIH co-star, Julia Butters, was proving she's on her way to becoming the next "It" girl. The young actress slayed in a silver sequin Dsquared2 suit, which she paired with a tiny bag by Dan Life.

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Big Little Lies star Chloe Coleman also sported a chic boy-meets-girl ensemble. The 11-year-old actress opted for a navy blue Burberry suit and matching loafers, giving the overall look a feminine touch with pretty pearl hair accessories.

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But the ladies weren't the only ones who dressed to impress! Stranger Things star Noah Schnapp wore a satin, ice blue suit custom-made by Balmain that landed him on ET's Best Dressed list.

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This Is Us star Sterling K. Brown also looked as dapper as ever in an 18th Amendment tux. He styled the sophisticated suit with Christian Louboutin shoes and Omega accessories.

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Taron Egerton also caught our attention Sunday night. The Rocketman star opted for a gray suit by Brunello Cucinelli, pulling it together perfectly with a black bow tie.

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Sleek and sophisticated! The Irishman's Bobby Cannavale wore head-to-toe black, appearing charming as ever while posing for pics on the red carpet.

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Alfie Allen chose a garnet-and-black printed jacket by Ermenegildo Zegna XXX. The Game of Thrones star accessorized with a gold pendant necklace and matching rings.

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Click through the slideshow below for more stunning looks from the SAG Awards red carpet:

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