Britney Spears Oscars: Singer Debuts Brunette Hair, Plenty Of Cleavage At After-Party (PHOTOS)

02/25/2013 08:43 am ET | Updated Feb 25, 2013

A new man is not the only thing new in Britney Spears' life these days.

Spears debuted a new shade of brunette hair at Elton John's Oscars bash on Sunday evening in Los Angeles.

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The 31-year-old singer's signature platinum locks have been dyed a soft, chocolate brown, which is a shade closer to her natural color.

Spears also dared to bare plenty of cleavage in a sparkling black Michael Cinco Couture dress with cap sleeves and a sheer back, according to Just Jared.

On Sunday, the former "X Factor" judge partied alongside the likes of Kim Kardashian, Miley Cyrus, Heidi Klum and Emma Roberts, ABC News notes.

“It’s a great mix of people,” John told ABC.

Noticeably absent was Spears' rumored new boyfriend, David Lucado.

The superstar was first spotted out with the 27-year-old Atlanta native on Valentine's Day, TMZ reported. A few days later, Spears and Lucado were seen playing golf at the Sherwood Country Club, near where Spears lives. He is said to be the "exact opposite of a Hollywood guy."

The last time Spears went brunette was back in 2009, when she began dating Jason Trawick.

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britney spears oscars brunette

britney spears oscars brunette

britney spears oscars brunette

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