The grunge era may be over, but over the weekend, Jessica Alba pulled out her best punk-inspired hair. Jessica already has the two-toned hair colour that was so popular in the '90s (and has re-emerged in the ombré trend). But achieving her carefree waves is easy if not quite effortless. Since this style is all about being messy, start with second-day hair. Dampen strands with water or leave-in conditioner. Then create two to three French braids (don't bother with perfection). Allow the hair time to dry or do the braids right before bed. In the morning, press a warm flat iron to the braids to lock in the waves. After unravelling, spritz hair with dry shampoo to get volume and a more matte look. Finally, scrunch and fluff with fingers. Jessica updated her grungy hairstyle with a pop of orange lip colour — the antithesis of the moody smoky eye.