"I'm alit brownie! :)," The X Factor judge tweeted. "Feelin the new colour and bangs...Courtesy of @BenCookeHair!"
Nicole's new do was cut by one of our favourite celebrity hairdressers, Ben Cooke, who's taken his scissors to many hot ladies over the years, including the likes of Victoria Beckham, Amanda Holden and Leona Lewis.
Both Ben and Nicole are ambassadors for Herbal Essences, so there are no prizes for guessing what her latest hairdo is in aid of... a new campaign for the brand perhaps?
We've long been fans of Nicole's dark, shiny long locks but are similarly loving her new look.
Gone is the almost-black colour we're used to, with the ex-Pussycat Doll now sporting a much lighter, warm chestnut colour, courtesy of Sophie Grant, who works with Ben at top London salon, Lockonego.
Nicole has also had a long, cheek-skimming fringe cut into her hair, giving the look a much fresher, updated feel.
Very Kate Middleton, don'tcha think?
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