Rihanna has never been too far from the headlines this year, and it seems that as 2011 draws to a close, this is showing no signs of changing.
The pop starlet appeared in her underwear for an Armani advertisement in recent months, which has now been named the sexiest ad of 2011.
She was shown in the back of a car for the black and white images, which were voted for by advertising industry chiefs in a poll by Advertising Age.
The mag commented: "It's Rihanna at her sexiest. She's never looked this good. She's in amazing shape and the pictures are stunning."
In recent weeks, Kate Moss stripped off for lingerie brand Valisere, where she posed across an unmade bed wearing stockings and suspenders.
She was also styled in a way that was reminiscent of Brigitte Bardot, with backcombed hair and a pout for the camera.
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