Britney Spears has popped another teaser video thing for her forthÂcomÂing docÂuÂmentÂary and Vegas residency onto the world wide web.
This one shows the 'Like a Virgin/Hollywood Medley' chanteuse rehearsÂing dance moves with her new choÂreoÂgrapher intercut with bits of chat about how hard it's all been.
Fans of her signature hair-flip dance move are advised to skip to 1:12.
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