Barbadian singer Rihanna performs during the first stop of her 777 worldwide 

Barbadian singer Rihanna performs during the first stop of her 777 worldwide tour at the Plaza Condesa in Mexico City, Wednesday, Nov. 14, 2012. (AP Photo/Marco Ugarte)
Associated Press
Barbadian singer Rihanna performs during the first stop of her 777 worldwide tour at the Plaza Condesa in Mexico City, Wednesday, Nov. 14, 2012. (AP Photo/Marco Ugarte)
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