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Britney Spears may have priced herself out of a job with "The X Factor."

Last week, published reports indicated that Spears was mulling a $10 million offer to become a judge on Simon Cowell's Fox singing competition. However, TheWrap.com claims she rejected that proposal three weeks ago, and is seeking $20 million for her services - a number that Fox reportedly won't touch.

TheWrap.com says Brit is now exploring the possibility of doing a concert residency in Las Vegas, much like Celine Dion.