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Britney Spears is now a brunette.  The Princess of Pop debuted her new hair color Sunday night at Elton John's annual Oscar viewing party.  She made quite the red carpet appearance in a revealing black gown to go with her newly-dyed deep chestnut brown locks. 

It was one of her first major public appearances since calling off her wedding to fiance Jason Trawick in early January.  

Stunning Brit!