The Award-Winning Beauty Looks From Tonight's American Music Awards

To create Petras's beachy waves, hairstylist Iggy Rosales used göt2b hair products — starting with the color. "We wanted to maintain her hair color but with dimension at the root so prelightened her hair using göt2b Bleach It ($10)," she says. "From there we toned her roots slightly darker to give it more of a gritty look." Petras finished her AMAs outfit with a classic french manicure.