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Emma Roberts, Emmy Awards 2015

Steve Granitz/WireImage

She'll play a ruthless sorority queen on TV this fall, but Emma Roberts was nothing but class on the Emmys red carpet.

The actor channeled a vintage screen siren in a Jenny Packham satin barley gown with a plunging neckline, accented by a velvet belt featuring a diamond brooch. However, it was her soft waves—courtesy of celeb hairstylist and E! Style Collective member Nikki Lee—that really completed the romantic look.

"We did a modern take on an Old Hollywood sultry star!" said Nikki.

While Emma's custom dress and Giuseppe Zanotti shoes may be a bit out of our budget, you can recreate her beautiful locks. The star's trusted hair guru breaks down the steps below.

#BTS @emmaroberts #Emmys Old Hollywood??????Sultry Star @unite_hair

A photo posted by Nikki Lee (@nikkilee901) on

"I started with prepping her hair with Unite 7Seconds Leave In Detangler then applied a volumizing spray at the root to mid shaft," noted Nikki. "I used a sculpting lotion for her ends then blew her hair out with a 2-inch round brush, which added a nice bounce to her hair.

"I then set her hair with thermal shine spray to protect her hair from the heat of the 1 ½-inch curling iron I used. I took about 2-inch sections all around her head, wrapping the hair downward and pinned them with duckbill clips to hold into place. Once completing the set, I did a light mist of hairspray. I let the hair cool for about 15 minutes.

"I then took all pins out and began brushing all her curls out with a boar-bristle brush. This is a key element to creating that old Hollywood wave. After I brushed and created the shape, I locked it in to place with Unite Session-Max hairspray."