Kate Beckinsale turns 43 today! She's one of Hollywood's sexiest starlets with hot roles in everything from Underworld to Van Helsing to Total Recall. Aside from the big screen, there's no denying that we've kind of developed a huge style crush on her throughout the years. In celebration of her 43rd year, keep scrolling to see all of her hottest photos, from her stunning red carpet shots to her red hot bikini photos.