Britney Spears admits she prefers sloppy over style. “I love my jeans and my sweats,” she tells the October Elle. “I’m really just a tomboy at heart. So it’s really hard for me to be like Kim Kardashian and be makeup-and-hair-ready every time I go out.” But she adds, “On the other hand, when you do wear those sweats, you’re like, ‘Oh God, I should step it up a notch.’ ” Page Six reported last month that Spears was told by Simon Cowell to dress better, and clean up her hair and makeup, for “The X Factor.” She certainly cleaned up well for Elle’s chic picture above with fiancé Jason Trawick.