I know hair/back lighting has been downplayed or seemingly avoided in a surprising number of situations...but if ever there was a need for one, here it is:
https://www.youtube.com/watch?feature=player_embedded&v=VzKwsgy-U58#t=908
https://www.youtube.com/watch?feature=player_embedded&v=VzKwsgy-U58#t=908