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Paris Hilton, Cate Blanchett and Robert Downey Jr at Stella McCartney show

Paris Hilton, left, and Nicky Rothschild (Vianney Le Caer/AP)
Paris Hilton, left, and Nicky Rothschild (Vianney Le Caer/AP)

Paris Hilton was joined by her sister Nicky as she visited her namesake city to attend Stella McCartney’s latest catwalk show.

Tar star Cate Blanchett and Iron Man’s Robert Downey Jr also sat in the front row for the spring/summer 2024 show.

Posing for photos alongside sister Nicky Rothschild, the socialite-turned-entrepreneur – who welcomed her first child with husband Carter Reum earlier this year – wore an asymmetrical white dress by Stella McCartney with pointed-toe heels and oversized sunglasses.

Paris Hilton, left, and sister Nicky Rothschild
Paris Hilton, left, and sister Nicky Rothschild (Vianney Le Caer/AP)

Fashion designer Rothschild was also dressed by the brand in an aqua long-sleeved ensemble with a pussy-bow tie.

Blanchett donned a patchwork denim jacket and jeans from the British fashion house, founded by McCartney in 2001.

The Australian star sat next to fellow actor Robert Downey Jr and American Vogue editor-in-chief Anna Wintour at the Paris Fashion Week show, held at Saxe-Breteuil Market.

From left: Robert Downey Jr, Cate Blanchett and Anna Wintour attend the Stella McCartney Spring/Summer 2024 womenswear fashion collection
From left, Robert Downey Jr, Cate Blanchett and Anna Wintour (Vianney Le Caer/AP)

Emily In Paris star Ashley Park was also front row, dressed in a navy blazer dress embellished with chain tassels, teamed with chunky-soled trainers, black tights and a clutch bag.

Ashley Park
Emily In Paris actress Ashley Park was in attendance (Vianney Le Caer/AP)

Model Mia Regan – the girlfriend of Romeo Beckham – showed off her Gen Z style credentials in a casual outfit.

The 20-year-old tapped into the ‘soccercore’ trend in an Arsenal football shirt teamed with a denim maxi skirt and slouchy brown boots.

Mia Regan arrives for the Stella McCartney Spring/Summer 2024 womenswear fashion collection
Mia Regan sported a casual look (Vianney Le Caer/AP)

McCartney – daughter of Beatles star Paul and the late Linda McCartney – has long been a champion of sustainable fashion on the catwalk, and this season the designer went one step further.

Immediately after the show, guests (and members of the public who had reserved a free ticket) were invited to explore Stella’s Sustainable Market, a showcase of material innovations.

Textiles on show included plant-based, grape-based and apple-based alternatives to animal leather, as well as regenerative cotton and wool, and yarn made from seaweed.