VIVICA GETS THE ‘BOOBY PRIZE’

Booby Prize for “Kill Bill” cutie Vivica A. Fox, who shockingly stripped off and exposed her “Janet Jacksons” during a photo shoot at LA’s posh Regent Beverly Wilshire hotel. The 39-year-old exsqueeze of rapper 50 Cent had a ball posing for a Smooth mag cover shoot in a pink mink coat and black bikini — and suddenly aired her ta-tas! “No one expected it,” said editorial director Sean Cummings. “There she was — just standing there with her breasts out!”