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Singer Britney Spears arrives at KIIS FM's Wango Tango in Los Angeles on Saturday, May 14, 2011. (AP Photo/Dan Steinberg)

Singer Britney Spears arrives at KIIS FM's Wango Tango in Los Angeles on Saturday, May 14, 2011.

Britney in as 'X Factor' judge

Britney Spears is coming to the rescue of Fox's "The X Factor," the singing contest in search of a ratings boost. The Grammy-winning pop star has signed on as a judge for the show's second season, a person familiar with the deal said Thursday, May 10. (AP)