Kate Beckinsale revealed her new 'do in Mexico yesterday. What do you think of her hair colour? She's on holiday with Len Wiseman, and wore a frilly bikini as she lounged poolside. Kate's no stranger to trying out fresh looks, and embraces the opportunity to go crazy with her style at Halloween. She recently spoke about her love of special occasions and the importance of celebrating events in her childhood, and a fab new look is a good reason to celebrate.