Celebrity hair stylist Sarah Potempa tells HollywoodLife how she got K-Stew’s hair looking perfect for the premiere of Rob Pattinson‘s Water for Elephants in NYC on April 17!

Kristen’s “growing it out now,” says Sarah. Her hair “has amazing long layers and great natural texture.”

“When she came, I love how it looked — sort of out of the shower, towel dry — perfect beachy wave with all the layers cut into it. It has a lot of movement,” says Sarah. “I took that style — that natural wave — I blew it out and gave it some volume. Then I reenhanced those waves with a flat iron