But she also looked classy and fabulous in this black floor length dress. This image appears in the gallery:Rihanna Covers US Elle Magazine's December Issue 5. But she also looked classy and fabulous in this black floor length dress. www.elle.com/news/culture/december-2014-editors-letter-rihanna Picture: Paola Kudacki for ELLE 7 images See the full gallery: Rihanna Covers US Elle Magazine's December Issue