Most fans of her melodic, bland pop music are preteen girls, who have unsurprisingly copied her dress and mannerisms. As these combine (according to Spears, literal) virginal innocence and blatant sexual provocation, this imitation has caused quite a deal of concern amongst parents at the appropriateness of often very young "tweenies" unknowingly sending out sexual signals.
Britney's Wikipedia page circa October 2001 was so shady.