09/20/2011 09:02 am ET Updated Dec 06, 2017

Sienna Miller, Kate Moss & Rosie Huntington-Whiteley Celebrate Mario Testino In London (PHOTOS, POLL)

On Monday night, Mario Testino hosted the most glittering party of London Fashion Week in honor of his recent Moët & Chandon Étoile award.

To fete Testino, who is beloved by models industry-wide, top runway strutters such as Kate Moss turned out at the Park Lane Hotel wearing every version of the night's dress code of white and black.

Sienna Miller and Rosie Huntington-Whiteley, like Moss, brought out their best frosted white gowns and red lips. Rosie went low-cut (of course) in a Burberry dress with Christian Louboutin shoes, while Sienna went for Old Hollywood glam and Kate covered up with a luxe fur.

Also in attendance were Candice Swanepoel, Georgia May Jagger, Christopher Bailey, Cara Delevingne, Joan Smalls, longtime Testino fan Anna Wintour (who chose a strange, somewhat unflattering purple velvet frock) and Peaches Geldof, who stood out in her bright red dress.

But it was original British beauties Kate, Sienna and Rosie who stole the show. See their ensembles below -- who looked best in white?