It isn't the first time Kate has worked with Irina – she also cast her to appear in French Vogue during her guest-editing stint in 2005.
'Kate thinks she's got a very unique, rock-chick look,' says a source. 'She really felt that Irina embodies the feel of her TopShop range - her porcelain skin, her big eyes under her thick Sixties fringe - it was a look Kate was impressed with.'
Kate Moss for TopShop goes on sale from 1 May at TopShop stores around the country, as well as online at www.topshop.com. (28 March 2007)