jeans boots Britney Spears x factor dog

Britney Spears and her new pooch arrived at the Los Angeles set of The X Factor with messy hair and no bra, so we're guessing she spent quite a bit of time in hair and makeup (and wardrobe!) before hitting the stage with Demi Lovato and Simon Cowell:

britney-xf-460.jpgGetty Images for Fox

What a dramatic transformation! And not only does she clean up well, but it was announced earlier today that Britney is Forbes' top-earning female musician after raking in a whopping $58 million over the last 12 months. She's still got it!