Kate Beckinsale gave photogs a lot to take in this weekend in Mexico -- where she showed off her new, blonde 'do and her killer bikini body!
The normally brunette "Underworld" star went for a shockingly lighter hair color during her vacation with hubby Len Wiseman -- and we want to know what you think!
Also, be sure to check out what other stars have had surprising hair transformations!
© 2013 EHM Productions, Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.