Sienna Miller braves heatwave and smiles in fur coat at Serpentine Summer Party

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Serpentine Summer Party 2026

Stars braved the heatwave to attend the annual gallery fundraiser on Tuesday evening.

Sienna Miller braved the heatwave and smiled for photographs wearing a fur coat at the Serpentine Summer Party.

The actress, best known for the films Alfie and American Sniper, arrived at the annual gallery fundraiser on Tuesday wearing a champagne silky number with a green coat lined with fur as London faced temperatures of up to 34 degrees.

Meanwhile Lights singer Ellie Goulding wore a black co-ord with a bodice-like top and sheer trousers with actress Celia Imrie wearing a white ankle-length gown with dramatic feathered sleeves and matching pearl clutch.

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Other stars attending the event amid the heatwave included Saltburn star Richard E Grant, who smiled for photographs in a summery white suit and black belt.

Pitch Perfect actress Rebel Wilson also attended the fundraising event wearing a Louis Vuitton Monogram black silk shirt dress and smiled for photographs alongside her wife, fashion designer Ramona Agruma, who attended wearing a white floral summer dress.

The fundraiser, held at the Serpentine Galleries in Kensington Gardens, aims to bring together Serpentine supporters alongside leading figures from art, culture, fashion, architecture, business and technology.

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For the first time since the event began in 2000, one artist co-hosted the summer party with Australian actress Cate Blanchett chosen for the role.

Love Island presenter Maya Jama attended the event wearing a strapless floor-length snake-like patterned dress while actress Salma Hayek wore a light purple gown.

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Meanwhile Australian actress, Isla Fisher, known for Confessions of a Shopaholic, arrived wearing a light pink strapless gown with embroidered flowers along the side.

Other stars attending the event include models Adwoa Aboah, who wore a sparkly midi dress, and Rosie Huntington-Whiteley sporting a white gown.

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