Jessica admires Britney and 'nasty' Christina

Jessica Simpson admires pop rivals Britney Spears and Christina Aguilera for very different reasons, labelling Aguilera as a "nasty girl".

Simpson beat competition from Spears to win the role of Daisy Duke in the forthcoming The Dukes of Hazzard movie.

Simpson says: "She has a really cute butt and she would have been cute in the role. But I'm glad I got it."

"Vocally (I prefer) Christina; as a person, Britney. Christina has that edge. She's the nasty girl, but she is extremely talented."