Sienna Miller braves heatwave in thick fur coat as she leads stars at Serpentine Summer Party London Evening StandardSerpentine Summer party: Celia Imrie and Sienna Miller lead the best-dressed The TelegraphSienna Miller braves heatwave and smiles in fur coat at Serpentine Summer Party London Evening StandardSalma Hayek, 59, is a goddess in silky dress as she leads star-studded Serpentine Gallery summer party HELLO! MagazineIsha Ambani in vibrant red dress paired with mom Nita Ambani’s jewels serves bling with a side of elegance at event Hindustan Times