Showing off a stylish new hairdo, Cheryl Cole was spotted arriving at the "X-Factor" studios in London on Friday (October 15). Donning a freshly reddened coif, the former Girls Aloud singer spent the day hard at work on the popular ITV show before exiting to hop into an awaiting car. As for her new hairstyle, Toni & Guy Technical Artistic Director, Francessco Fontana, spoke with Daily Mail about maintaining such a look. Fontana tells, "To achieve that kind of color intensity on a dark natural shade, like Rihanna, hair often needs to be pre-lightened to create the intensity of the colour a...