Hairstylist Jenny Cho, who created Ali's look, says, "This style makes you look confident because the hair is off the face." Start by blow-drying hair away from the face, then tease the roots a little bit. Use Velcro rollers (for extra volume) and let them sit while you do your makeup. Unravel rollers and set with a flexible-hold hairspray. "A heavy spray will weigh hair down and you want the volume to last for the entire party," says Cho.