Singer Jessica Simpson Hits the Runway

Singer Jessica Simpson hit the runway in Paris. Wearing a ruffled black halter dress, the singer, 29, served as a special guest model at an Ozlem Suer show Friday.

"Jessica's doing good," her sister Ashlee Simpson-Wentz said on Thursday's Today show. Jessica is currently shooting her upcoming VH-1 TV show The Price of Beauty, which follows the singer as she tours seven countries to document what beauty means to women around the world.

In August, she visited Tokyo, where she met Miss Universe 2007 Riyo Mori. "It was very exciting to work with Jessica," Mori told "She is a beautiful and friendly girl. She was always smiling and seemed very happy. The interview was in English, and it was fun to talk about Japan with her. She is enjoying herself."