Nadar and his team are giving the models those postparty bombshell waves using a GHD Curve Classic Curl Iron ($199) with a one-inch barrel.
"Definitely a good prep spray because you don't want the curl to drop," he noted. "Use something like L'Oréal Professional Tecni.Art Pli Styling Spray." [Note: this product is only available in the UK, so try L'Oréal Blow It Dry Quick Primer Spray ($5).]
He advises to mist it onto damp hair and blow-dry it in. Then, pick random pieces of hair instead of perfectly symmetrical sections and curl it around the clamp in different directions.
"The idea of going in different directions makes the hair feel a bit more natural," he explained. "It feels a bit more lifted and realistic."