CAN I BE THE KNOB?: Robbie Williams is appealing for marks ("fans") who went to the Knebworth gigs to send in photos so that he can make a giant image of himself, to replicate the way he's taken their money and made a giant cock of himself over the years, we suppose. The resulting picture is going to be sold for William's doesn't like to talk about it charity Give It Sum, which means as well as providing the raw material for his DVD launch, fans will then be suckered into buying a 'charity item' that is also, of course, part of his promotional work. Neat-o, eh? We suggest if you got caught in one of the traffic jams caused by the concerts having been filled to the capacity of William's ego rather than the level they could easily cope with, you send in a photo of that.