How to Get Kate Beckinsale’s Flirty Voluminous Waves: Starting with a center part, apply volumizing mousse to top half of hair & blow dry straight with a round brush, lifting hair at roots. Curl bottom half of hair in 2 in. sections with a 1.5 in. curling iron, wrapping hair around the iron outward. Rake fingers through waves & mist with glossing spray to finish.