Where were all the fashionable folk in London yesterday? At the McCartney family's Meat Free Mondays lunch of course. Sir Paul McCartney, along with his children including Stella, hosted the event at St James Park to launch the initiative. They hope to encourage people to give up meat for one day a week in order to help climate control. It was prompted by a UN report, which says meat production is responsible for 18 per cent of greenhouse gas emissions. Famous friends who turned out to support the campaign included Kate Bosworth, Sophie Ellis-Bextor, Laura Bailey and a newly-cropped Kelly Osbourne (above, right). Is she channelling Agy or what?