Last night we hung out with one of the world's greatest living designers. Business partners Giancarlo Giammetti and Valentino were in London last night for the launch of Giancarlo's new book Private, Giancarlo Giammetti, which traces the pair’s 50-year collaboration and features a selection of images from Giancarlo’s stash of 57,000 photos. We managed to catch the pair for a quick chat... so, what did you do last night?