It's nothing we can't fix though, so open the photo in a PS document. Double-click on the background layer and name it something to turn it into a regular layer. Use the eyedropper tool (I) to select the photo's background color and go to Select > Color Range. Use an appropriate fuzziness that will cover as much of the model as possibly. Don't worry about part of the face showing up, we'll take care of that in the next few steps.