26/09/2011 06:42 BST | Updated 26/11/2011 05:12 GMT

Grrrr! Rihanna bares her claws for Rock in Rio

Rihanna showed her wild side while performing last night at the world's largest musical festival Rock in Rio in Brazil. The superstar took to the stage in front of an estimated 100,000 adoring fans in this stripy ensemble.