Getty Images.Keri Hilson, much like many of her contemporaries, would probably love nothing more than to set herself apart from the pack of R&B singers who control the airwaves right now. Much like Rihanna, Hilson has made her hairstyle part of her signature look - although her look couldn't be more different from Rihanna's. Hilson's hair has been getting progressively shorter in the past couple of years. Check out the '70s-inspired bob Hilson was wearing in 2007 (very Toni Tenille).Keri...Read Full Story