Exhibit A: Scarlett Johansson was a stunning example of A-list glamour at the Extreme Beauty In Vogue party during Milan Fashion Week

Exhibit B: Peaches Geldof, with Blake Wood, looked out of her league at the Milan Fashion Week event

The 19-year-old Miss Geldof’s simple cream sheath over black tights and casual hairdo would have been fine for a casual night out with friends.

But in the world of high fashion, Peaches was clearly outclassed.

The socialite had attended the Palazzina della Ragione in Milan with American photographer and artist Blake Wood, a friend who she was recently spotted partying with in London.

Looking super: Models Claudia Schiffer and Eva Herzigova

Ciao, bella! Eva Mendes and Kate Hudson pulled out all the stops

Wood is also a friend of Amy Winehouse, and known as ‘good Blake’ because of his comparatively clean lifestyle relative to the troubled singer’s husband Blake Fielder-Civil, who was recently released from jail.

While Wood’s own outfit failed to make an impression, Peaches was in good company if she wanted a lesson in style for the next fashion event.

Experienced fashionistas Eva Herzigova and Claudia Schiffer were a how-to guide to red carpet glamour.

Young guns: Slumdog Millionaire star Freida Pinto soaked up the atmosphere while model Alice Dellal traded her usually outrageous outfits for a demure LBD

Always in vogue: Editor Anna Wintour and former model Lauren Hutton both settled on understated elegance

Muse: Scarlett with designer Domenico Dolce

They demonstrated their unique styles while maintaining high-level grooming and perfect accessorising.

The A-listers were helping launch Extreme Beauty in Vogue, an exhibition of almost 100 photographs from the past 75 years of American Vogue magazine.

Chief editor Anna Wintour  co-hosted the event, which also marked the  release of Dolce & Gabbana’s first make-up collection.

Scarlett, who is the current face of the make-up range, posed for photographs alongside its creators Domenico Dolce and Stefano Gabbana.

The Lost In Translation star looked every bit the 1950s siren in a leopard print frock with a nipped-in waist.

Her perfect pout – with trendy red lipstick – was the ideal advertisement for the new collection.