She’s had more ups and downs than the stockmarket, hers is the most searched name on the internet, she’s flogged nearly 100 million records; it’s no wonder Simon Cowell calls Britney Spears the “President” of the stars.

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Given all the frenzied hype when La Britney made a flying visit to London last week to mime for a few minutes on the X Factor, gawd knows what the fever-pitch meter will be reading when she comes back for a proper singsong with ten nights at the o2 next year.

X-Factor Video: