In case you missed it, one of the most highly anticipated summer movies has embarked on an equally delightful press tour. When you have a style star like Margot Robbie join forces with Hollywood legends Brad Pitt and Leonardo DiCaprio, you know the red carpet looks for Once Upon a Time in Hollywood will be nothing short of stellar. Robbie certainly hasn't disappointed, but we were actually particularly obsessed with her after-party look.
Attending a post-premiere party in London, Robbie traded her Oscar de la Renta gown for a Matteau matching set that looked like the chicest pajamas imaginable. To make the lounge pieces look party-ready, she added Loeffler Randall Penny Mules ($395) et voilá: Robbie created arguably the most comfortable yet chicest party look. Scroll down to see what she wore to the Once Upon a Time in Hollywood after-party.
Shop Pajamas You Can Leave the House In
Next up, see everything Margot Robbie has worn to the Once Upon a Time red carpet events.
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Margot Robbie Just Wore the 2026 Version of the Millennial Going-Out OutfitHint: Bootcut jeans are not involved.
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If You Want to Look as Elegant as Possible in Leggings and Pull-On Pants, Wear This Sweater TrendAs seen on Margot Robbie in West Hollywood.
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Margot Robbie Wore the Sneaker Trend I See Every Time I Go to the AirportComfort first.
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Margot Robbie Wore the Shoe Trend I'm Swapping Ballet Flats for This SummerSimilar but different.
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The Top 11 Celebrity Stylists Right Now and Who They're DressingThe best in the biz.
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The Golden Globes After-Party Looks You Didn't SeeIncluding Margot Robbie and Jennifer Lawrence.
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The Exact 2 Chanel Nail Polishes Behind Margot Robbie's "Barbie Doll Hands"New manicure inspo, unlocked.
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I Ranked the Celeb-Favorite Beauty Products I Was Influenced to Buy This YearIt was tough, but I did it.
