Hair Royalty   Laura Geiser  Ursula Stephen created hair history
when she transformed chart- and headline-topper Rihanna from an
island-girl-next-door to one of pop's edgiest fashion icons with
a few skillful sweeps of her scissors. (The look was voted
2008's most coveted crop by ELLE readers.) Stephen's
reinventions may look hyper-modern, but her influences are
distinctly retro: "I'm all about old school," says the Motions
hair care celebrity stylist, who also works with Keyshia Cole
and Zoe Kravitz. "Right now for Rihanna, I'm shaking things up
with a combination of Sheila E., Lisa Lisa, and mohawk style,
concentrating on trimming the sides but letting the crown and
back take their course."  Moisturize, moisturize, moisturize! I
use deep treatment masques at least three times a week on my
clients, swear by leave-in conditioners, and never skip a
protective spray, which acts as a buffer between your hair and
the heat. But I don't use irons and dryers every day. If I fry
your hair one day, I'm going to rely o