This was one of my fave looks of the night, dolls. In fact, when I saw Miss Sienna Miller strolling down the red carpet, I tweeted that she had founded a new country called GAMERICA. Her sequined green shoulder-padded-but-not-too-’80s number was glamourous beyond all get-out. And her hair was perfectly styled. Here are the deets, straight from Frederic Fekkai stylist Adir Abergel, who styled Sienna’s hair for the event.

Adir started out with the Fekkai Marine Hair Zero-Humidity Frizz Control ($23) to block humidity while sealing in hydration to keep sleek for all-day frizz & flyaway protection. He then added the Fekkai Coiff Bouffant Lifting & Texturizing Spray Gel ($23) at the roots to add lift and volume. Then he blow-dried the hair completely. Once hair was fully dried, he took a 1 1/4” curling iron and wrapped hair around the iron in small sections, leaving the ends out to create more of a rock n’ roll vibe. Once Adir finished the curling, he took sections of hair and applied Fekkai Coiff Magnifique Ultra-Light Finishing Creme ($23) to create a little separation on ends. This is an easy look to achieve in fewer than 20 minutes.

Fekkai products are available at Sephora.com, Nordstrom, Neiman Marcus, Saks, and Fekkai.com.