Dancers perform during an arrival ceremony for Britney Spears at Planet Hollywood on Tuesday, Dec. 3, 2013. Spears is making preparations for the debut of her two-year residency, “Britney: Piece of Me,” that is scheduled to begin at Planet Hollywood on Dec. 27.

Steve Marcus

Dancers perform during an arrival ceremony for Britney Spears at Planet Hollywood on Tuesday, Dec. 3, 2013. Spears is making preparations for the debut of her two-year residency, “Britney: Piece of Me,” that is scheduled to begin at Planet Hollywood on Dec. 27.