Phew! Scarlett Johansson is threatening to steal Madonna's crown when it comes to changing her hair... The actress, who always wows on the red carpet, has had everything from wavy cherubic locks to sophisticated updos, strawberry blonde tints to full-on peroxide. Then this week she appeared at the He's Just Not That Into You premiere with a new, ultra-straight dark 'do in deep chocolate brown. It seems when it comes to hair, Scarlett is a woman of many colours, but which do you prefer? Tell us above.