Last night saw the London fashion crowd out in fine form for the glittering launch of Karl Lagerfelds lauded exhibition; 'The Little Black Jacket: CHANEL's classic revisited for the book of the same name.Chanel creative director Karl Lagerfeld invited loyal Chanel devotees including Eva Herzigova, Yasmin le Bon, Alice Dellal, Portia Freeman, Kristen McMenamy and Stella Tennant. Naturally the Chanel ambassadors, Caroline Sieber and newly engaged Poppy Delevigne were at the Saatchi Gallery in London in their finery.The exhibition itself is open from today until November 4th, for more information visit saatchi-gallery.co.uk