Sydney Sweeney showed off the perfect amount of skin at the Echo Valley premiere in London on Tuesday, June 10.
For the red carpet, she stunned in a Tiffany blue custom Miu Miu dress featuring a crisscross halter neckline, flowy straps that draped over her elbows, a fitted bodice and a pleated whimsical skirt that cascaded into a delicate train. The most notable part of her ensemble was the peek-a-boo cutout over her chest, giving fans a glimpse of her bust.
The actress added even more glam to her look with diamond jewelry, including sparkly rings and a number of tennis bracelets stacked on her left wrist. She completed her outfit with dangling diamond earrings by Davis Morris.
Her makeup perfectly tied her look together with soft bronzy eyeshadow blended to her crease, a touch of black eyeliner, long, flirty lashes and pink lips. Her blonde hair was styled in loose curls with her crown pulled back into a half-up coif.
Related: Sydney Sweeney’s Body Evolution: 30 Pound Weight Gain, More
Sydney Sweeney has always had a fabulous figure. From showing off her toned abs on the red carpet to posing topless on rooftops, the actress has no shortage of sexy looks throughout the years. While playing Christy Martin in a biopic, Sweeney revealed in June 2025 that she gained over 30 pounds for the role. […]
Sweeney recently opened up about her figure while chatting with W Magazine on Monday, June 9. To prepare for her role to play Christy Martin in a biopic, Sweeney shared that she gained more than 30 pounds.
“My boobs got bigger,” she said. “And my butt got huge. It was crazy! I was like, ‘Oh, my God.’”
The Anyone But You star also shared that she had to shop for an entire new wardrobe because she “didn’t fit” in any of her clothes. “I’m usually a size 23 in jeans, and I was wearing a size 27.”
Sweeney gained the weight with only “three and a half months of training.”
“I started eating. I weight-trained in the morning for an hour, kickboxed midday for about two hours, and then weight-trained again at night for an hour,” she explained.
The Christy Martin biopic is set to be released in November 2025.
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