Article Photos: Rihanna begins her 7-day world tour in Mexico City



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)

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)