'Butt double' used in Rihanna's Armani ad

A suggestive advertisement showing Rihanna writhing around in her underwear features shots of a butt and body double.
The pop sensation is seen in the Armani ad having a nightmare in bed before putting on a pair of jeans.
But shots that appear to show Rihanna, 24, in her underwear showing her chest and butt are in fact model Jahnassa Aicken.

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