Photos of Rihanna at Jingle Bell Ball in London

Rihanna may be the biggest beauty chameleon of '08 but she kept her look fairly simple at the Jingle Bell Ball in London last night. Her monochromatic black outfit had some bang thanks to her huge bold necklace. Of course, she also made a statement with her yellow smiley face nails, a look that only Rihanna could pull off and still look fabulous. The pop star is rocking our Best of 2008 polls from her short haircut to her bikini bod, but we're sure that all the fun she had with Chris this year is also part of the reason for the smiles on her face and her fingers.