Kate Winslet
As the details of her marital split are laid bare, so too is Kate Winslet's belly on vacation in Puerto Vallarta, Mexico. The actress, who announced her split from director Sam Mendes ('American Beauty') this week, was snapped looking toned and fit in a black two-piece with her two children, Joe and Mia.

We're used to seeing actresses in the skimpy swimwear, and Kate is no prude (she's had some pretty sultry scenes in 'Titanic,' 'The Reader' and 'Little Children'), but she isn't the kind of chick we usually catch sight of frolicking on the beach. This leads us to wonder: Was this a well-timed publicity stunt to introduce America to sexy, single Kate (who we are loving so much more than a certain other suddenly-single Kate)?