Miuccia Prada, the queen of fashion, arrived to host a grand dinner at historic Lancaster House in St James's tonight in a black 'star' appliqué leather biker jacket and silver pleated midi-skirt from Miu Miu's spring/summer 2011 collection. She accessorised her five-inch platforms and white T-shirt from Prada with her favourite banana earrings.Mrs Prada is in London for the opening of the new Miu Miu two-storey European flagship on New Bond Street tonight and also to announce the winner of the 2010 Turner Prize live on television on Monday evening.

Guests at tonight's dinner included Jessica Alba, Lily Allen, Sir Nicholas Serota, Ronnie Wood, and the 13 year-old Hollywood sensation Chloe Moretz who is currently filming with Martin Scorsese in London, and spending her time off set shopping. Her favourite buy is a pair of black leather shorts from Topshop.

Mrs Prada's guests arrived to be greeted by a man playing a silent grand piano and a model working on an impossible white jigsaw puzzle of acanthus leaves, based on the wallpaper in the new Miu Miu shop. The shop is inspired by a bank vault and features a wall of 'mock' safety deposit boxes. Not a bad idea considering the most expensive Miu Miu bag, in mustard, black or red croc is £6,900.

Ronnie Wood, still on the wagon and drinking coca cola, was also in attandance with his girlfriend, Ana Araujo in black sequined Balmain. She was just back from a shoot with Rankin and heads to Milan to shoot with Raphael Mazzucco next.

Jessica Alba flew in from New York just for the dinner and braved London's sub-zero temperatures and snow in a sleeveless lime green Miu Miu shift with bare legs and tan platforms. She revealed her "survival" secret was snowboarders' heat pads, which she keeps in her pockets and inside the soles of her shoes. "Sometimes at premieres, if it's really cold, I put them in my knickers, too," she said.