The singer hosted a party at Las Vegas' Pure Nightclub to welcome 2011, and instead of her usual body-con staples, RiRi opted for a more sedate look with a red-and-sheer striped dress, which she paired with black stilettos.
She made sure the red hue was colour-coordinated to match her hair and her vibrant red nails, and despite the sheer panels on the dress, RiRi managed to keep everything under wraps.
We love Rihanna's bold fashion statements and were hoping we'd get something a little more exciting for New Year's Eve. What do you think of her choice? Is it hot or not?