Nicole Kidman
Her natural hair colour is neither blonde nor dark, and it ain't all that smooth and straight either. The Academy-award winner is a natural red-head -- the frizzy kind -- who has decided to go blonde and straight indefinitely.
The only exceptions are for her movies, where she turned brunette -- The Peacemaker in 1997 and her upcoming Margot at The Wedding.
Photograph: [left] Getty Images and [right] a still from Margot at The Wedding
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