The Streatham-born beauty joined Welsh designer Julien Macdonald and other key players in the industry at Downing Street for 25 Years Of Fashion Week, a celebration of Britain's turn in the fashion spotlight.
Hosted by Prime Minister Gordon Brown's wife Sarah, the party saw the stylish pair mingle with other industry big names, including designers Diane Von Furtsenberg, Matthew Williamson and Nicole Fahri.
Later that day, Julien was at another very important occasion - his spring-summer 2009 show.
The hottest ticket in town drew the most famous faces so far at Fashion Week, with the likes of actress Joely Richardson, who chatted to British catwalk queen Erin O'Connor, Welsh singers Katherine Jenkins and Shirley Bassey, and Russian supermodel Natalia Vodianova all taking their places in the front row.