Gigi Hadid Gets Naked, Sister Bella Makes Chanel Runway Debut as Mom Yolanda Foster Announces Split

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Gigi Hadid and fellow Victoria’s Secret models Lily Aldridge and Joan Smalls are stripping down for Stuart Weitzman’s Spring/Summer 2016 campaign.

The 20-year-old model posted an Instagram pic of a racy shot from the shoe designer’s upcoming campaign, which features the models posing totally nude -- save for their Weitzman pumps.

WATCH: Kendall Jenner and Gigi Hadid Heat Up the Runway in Victoria's Secret Fashion Show Debuts

“So excited to be a part of the@StuartWeitzman SS16 campaign with@lilyaldridge and @joansmalls - shot by@mariotestino,” Gigi captioned the pic. “Best shoes, best team, best day - clearly NOTHING else is needed ;) xx #inourshoes.”

The American shoe designer also revealed that Gigi, Lily and Joan would be the faces of their SS16 campaign via Instagram, posting a behind-the-scenes pic from the models’ photoshoot.

“The Big Reveal: @GigiHadid @LilyAldridge and @JoanSmalls are the new faces (and legs!) of Stuart Weitzman, photographed #inourshoes for the SS16 campaign by@MarioTestino,” the company’s Instagram account captioned the pic.

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The announcement came on the same day Gigi’s mother, Yolanda Foster, revealed she had split from her husband of four years, music producer David Foster.

"Sadly we have decided to go our separate ways," the couple told ET in a joint statement. "We've shared nine beautiful and joyous years together. During that time we experienced love, friendship and the inevitable challenges that come with managing a marriage, careers, blended families and health issues."

While Gigi has stayed mum about the split on social media, she did tweet about another family member, younger sister Bella, who was making her Chanel runway debut for legendary designer Karl Lagerfeld on Tuesday night.

“My lil sis is about to slaaayyyyyy at @CHANEL #ParisinRome tonight,” Hadid wrote of her sister. “Proud of you.”

WATCH: Gigi Hadid Gets Emotional As It's Revealed Her Siblings Also Have Lyme Disease

Bella later posted pics from her Chanel debut, calling it a “dream come true.”

“What a dream to walk my first@chanelofficial show in Rome today,” the 18-year-old model captioned one of her runway pics. “Thank you @karllagerfeld @aurelieduclos @annemarieleonie @imgmodels for making my dreams come true ❤️ I am as happy as can be!”

WATCH: Yolanda Foster and David Foster Split