Keri Hilson went old-school glam for her performance of "Pretty Girl Rock" on the Late Show with David Letterman last night. Wearing a white feathered, sparkly evening gown and blond bouffant, the singer/songwriter transported the audience back in time to a Motown Revue. Work it, Keri! Here's what you had to say: La Shunrick Denise commented via Facebook: "I'm not feeling Keri Hilson, at all!" Chelle wrote via Facebook: "I love her album!"