Pop star Britney Spears has signed on to voice the lead in Madonnas animated film adaptation of the MATERIAL GIRL singers childrens book, THE ENGLISH ROSES, reports MonstersandCritics.com. Spears will lend her voice to Binah, a young girl who is excluded by the other girls at school because of her beauty. Madonna will voice the role of the Fairy Godmother and David Bowie and Snoop Dogg with also lend their voices. Madonnas husband SNATCH-director Guy Richie will produce the film.