At the 18th Annual Environmental Media Awards, Nicole Richie was all laid back and natural with her delicate French braids wrapped like a headband. If you're feeling this sexy, bohemian style, I've got the how-to below. And for another hippie-esque take on the look, try out Sarah Michelle Gellar's more twisty, less braidy updo from earlier this year.

• Slightly dirty hair is easier to work with than freshly washed hair, but you can create "day-old" hair with a texturizing product. Lightly sprinkle Aveda Pure Abundance Hair Potion ($23) on the roots, working through to ends.
• Next, part hair down the middle, stopping right before the crown area.
• On one side, start French braiding. Gather pieces of hair as you move down, wrapping around to the opposite side, stopping before the ear. Hold together with a clear elastic band ($3.99). Don't worry about loose ends. Leave them for later.
• On the other side, French braid — still gathering pieces as you go down, wrapping around to the opposite side like before. Focus on hiding the clear elastic band from your previous braid by tucking and intertwining loose ends from this braid. Use bobby pins to secure. The whole look is earthy, so be creative. The more you weave pieces from each braid together, the more organic and "flowy" it will feel.

When you all went wild for that gorgeous hair seen on Sarah Michelle Gellar at The Air I Breathe premiere, I got in touch with Mara Roszak, the stylist who created the look for Sarah. Mara, who has been styling celebrities since she was 17, has worked with other famous women including Halle Berry and Elisha Cuthbert. She predicts that "fresh skin, and fresh natural textured hair with pops of color" will be hot for Spring.

For Sarah Michelle Gellar, Mara was going for a bohemian look, inspired by Sarah's stunning turquoise gown.

To learn how you can recreate this look at home, read more.

• STEP 1: Spray clean, wet hair with a texturizing styling spray. Mara used Bumble and bumble Surf Spray.
• STEP 2: Blow-dry hair gently and loosely, encouraging any natural curl or wave to form. No need for a pin-straight blowout for this look.
• STEP 3: Part hair on the side and start twisting in the direction away from your face. Start at the top front of the head and add more hair from each side of the existing hair as you twist back, until all the hair in front of your ear is pulled back. Connect the twists in the back of the head, and then the remaining hair can be pulled up into a messy twisted bun.
• STEP 4: Finish off the look with a light hold hairspray. Mara used Renee Furterer hair spray to set Sarah's hair.