Britney Spears arrived at LAX last night, headed to Australia for the final leg of her Circus tour that kicks off Friday in Perth. She spent her last weekend at home dining out with Sean Preston and Jayden James before Halloween. Britney and her sons weren't among the many famous faces we saw in costume, but we did see her dressed up — or as the case may be, down — to kick off the weekend with her new video for "3." She'll be able to perform those provocative moves on stage if she adds her new number into her lineup for the shows.
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