Kate Beckinsale only seems to get hotter [1] with age. The Underworld actress will be ringing in her 44th birthday on July 26, and throughout the years, she's proven that there is no age for looking sexy [2] on the beach. Whether she's rocking a one-piece [3] or showing off her toned figure in a bikini, it's pretty clear that Kate is a force to be reckoned with.