MPHO RANTAO MISS Universe South Africa has revealed her costume ahead of her departure for the U.S. Natasha Joubert will be jetting off to Florida, where she will participate, on her country’s behalf, in the 69th Miss Universe pageant.  The current Miss Universe and longest-reigning queen in its history, South Africa’s own Zozibini Tunzi, will crown her successor on the final night at the Seminole Hard Rock Hotel and Casino.  Joubert, with the Miss South Africa organisation, unveiled her costume and evening gowns for the preliminary rounds of the pageant where each contestant will showcase their national costume and complete…