It's hard to believe that the super chic star on the February cover of Vogue is the same girl who once revealed that she goes out wearing a funky T-shirt and dirty hair.

Kristen Stewart, 20, struck a pose for famed photographer, Mario Testino, dressed in Proenza Schouler and sporting a voluminous blow-out, courtesy of celebrity stylist Oribe.

"Kristen is a beautiful young girl, and this style was all about softening her hair to go with the clothes she wore on the cover," says Oribe.

Here, he tells how to recreate the Twilight actress' hair look in four steps:

1. Spray your hair, section by section, with a volumizing product. He used Oribe Volumista Mist ($29, Then, blow-dry hair using a round brush to add body and movement.

2. Use a large-barrel curling iron to create big, loose curls. Spray each section first with a flexible-hold hair spray to prevent frizz and lock in the style.

3. Brush out the curls so the style looks natural with lots of body.

4. Finish with an all-over mist of lightweight hairspray.

Tell Us: What do you think of Kristen Stewart’s sophisticated Vogue cover?