Always working out and adept of all cosmetic innovations, Demi Moore, 48, has always enjoyed keeping her image ageless. But it seems that time – and perhaps her husband – has left the diva more proud of her age. Glamurama can explain: this weekend, she was photographed showing grey hair between the long black locks. Alongside her husband, actor Ashton Kutcher – who, incidentally, is 15 years her junior – Demi cheered at the game between LA Galaxy, David Beckham’s new team, and Manchester City. Sure of herself, that girl …