Who was the most famous celebrity in 2003?

Jennifer Lopez was the most famous celebrity in 2003. She was ranked as the most powerful celebrity by Forbes magazine, and was also named the "Sexiest Woman Alive" by People magazine. Lopez achieved great success in both music and film during the year, with her album "This Is Me... Then" becoming one of the best-selling albums of all time, and her film "Maid in Manhattan" becoming a box office hit.