LONDON, Dec. 1 (UPI) -- Nearly 13 million people tuned in to see U.S. pop star Britney Spears perform on the British TV talent show "The X Factor," The Times of London said.
Spears lip-synched and danced to her new single, "Womanizer," as a celebrity guest performer on Saturday night's show and earned a standing ovation by "The X Factor" judges. However, her eagerly awaited performance was criticized on show message boards by fans after the Spanish-born singer Ruth Lorenzo was booted from the competition.