You'll need to break out the curling iron if you want Hayden Panettiere's sexy, beachy waves. First, section off your hair and secure with clips. Using a large barrel curling iron, curl one section at a time, starting at the bottom and working your way up towards the crown. Then, instead of combing your waves, toss your hair up and down three times and finish with a shine-enhancing hairspray.
—Polly Blitzer for InStyle