Ladies, let down your hair. Spring’s tresses are long, luscious, and just messy enough to be sexy. Model manes at Brit label Preen poured over shoulders for a beach-ready look. BCBG’s hair was slightly more polished — straight yet still tousled. Badgley Mischka added volume to theirs for a sexier, Desperate Housewife feel. Move over, Kelly LeBrock.