Former newsreader Kate Silverton has wowed fans after revealing an unexpected hair transformation on social media today.The ex-BBC Weekend News journalist and broadcaster appeared almost unrecognisable in the new snaps she shared with her 66,600 online followers on Instagram.The 52-year-old mother-of-two - who last year famously swapped news reading for child therapy, later releasing her own books - was recognisable on television screens for her signature brunette choppy pixie cut, which every so often she had highlighted with gold. In new photos however, the former television star showed off, not only a never-before-seen shade, but also a floppier, more bohemian style of cut.