Brunette bombshell Eva Mendes is all about the big hair. Long, thick, voluminous locks paired with her sexy pout create a goddess effect that works on the red carpet every single time. We also love her recently unveiled lighter side, the layered blonde bob shown here. The color is perfect, just the right tone to enhance her golden skin. And if she misses her tumbling tresses, there's always the ever-popular Hollywood quick fix -- hair extensions.