This week's fourth and final day of live broadcast from Nick Knight's 100 Portraits for i-D magazine has now kicked off! We've just shot musician and artist Vice Cooler, while next up is London knitwear wizard Craig Lawrence. Later this afternoon, sitters include iconic fashion designer Vivienne Westwood, It-girl Pixie Geldof and a veritable male 'model-off' between fashion's favourite fellows Josh Beech and Ash Stymest. Tune into the live stream for all the action from the set, or join us in our viewers gallery here at Somerset House