Britney Spears unveils 'Femme Fatale' backstage footage

Britney Spears has unveiled a backstage video previewing her forthcoming 'Femme Fatale' tour.

The clip shows the moment Brit first sees the stage for her impending jaunt.

'Oh my God, I'm going to cry,' she says when the stage is first unveiled.

The singer is due to play three UK gigs later this year including a show at London's O2 Arena on October 27th, Birmingham's LG Arena (30th) and Manchester MEN Arena on November 6th.

Tickets for the 'Femme Fatale' tour go on sale this Friday (June 10th) at 9am.

Her world tour kicks off in the US this summer.

Check out Britney's reaction below....

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