Rihanna has had us on red alert for the past six months, ever since she stormed the stage in Spain debuting a fiery cropped coif. And while we never would have expected it from the ultimate style chameleon, she stayed true to the color for half of 2010, evolving the style from its original bowl cut, to an extra-long style before trimming it up and going crazy for curls. This week in London, however, the singer stepped out as a brunette–rocking the same bowl cut that was her signature style so many months ago. Later that day she made another public appearance that had her back to red. We always love seeing RiRi change up her style, but want to know what you think. Tell us: Do you prefer Rihanna as a brunette or a redhead?