Kate Beckinsale  is 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 birthday this week, keep scrolling to see all of her hottest photos, from her stunning red carpet shots to her red hot bikini photos .
Kate Beckinsale  showed off her edgy side at the 2013 Met Gala.
Kate left little to be desired at the 2015 Met Gala.
Kate wowed in a white bikini in Mexico in 2013.
The 2016 Critics' Choice Awards featured a stunning metallic appearance bu the actress.
Kate practically glowed at the United States Holocaust Memorial Museum's 2014 Dinner in LA.
While attending the 2016 Sundance Film Festival, Kate took this glamorous portrait shot.
In September 2010, Kate Beckinsale  showed off her bikini body while vacationing in Mexico.
Kate opted for a stunning backless dress at a gala in 2015.
Kate wore a positively sexy dress to Vanity Fair's 2014 Oscars party in LA.
Kate kept it elegant but still gorgeous for the 2016 Vanity Fair Oscars party.
In April 2005, Kate Beckinsale  sported a bright green bikini on the beach.
At the BAFTA Garden Party in 2016, Kate stunned in some shades.
Kate wore vibrant red to the 2013 Pink Party in LA.
Kate looked simple yet gorgeous at the Eva Longoria  Foundation Dinner in LA in 2013.
Kate went strapless at the Porsche Design 40th Anniversary Event in LA in 2014.
Kate Beckinsale  struck a pose for GQ Spain's March 2012 issue.
Kate Beckinsale  donned a one-shoulder silk dress at the Grammys in February 2012.
Kate Beckinsale  showed off her leg under a high slit at the Biutiful premiere in Cannes in May 2010.
Kate Beckinsale  showed some skin at the May 2004 LA premiere of Van Helsing.
In February 2002, Kate Beckinsale  posed in a one-shoulder ensemble for the Film Independent Spirit Awards.
In February, Kate Beckinsale  showed some skin in a cutout dress for the 2012 Vanity Fair Oscar party.
Kate Beckinsale  wore a swimsuit for the November 2009 issue of Esquire.
In June 2004, Kate Beckinsale  wore a strapless gown to the AFI Lifetime Achievement Awards in LA.
Kate Beckinsale  posed in a tight dress and high black heels outside of the Late Show With David Letterman in January 2012.
In November 2011, Kate Beckinsale  rocked a short white lace number at the Film Independent Spirit Awards press conference in LA.
Kate Beckinsale  wore a crop top and bikini bottoms for the July/August 2012 issue of Women's Health.
Kate Beckinsale  lounged in the sand during a September 2010 trip to Mexico.
Showing skin in a backless gown, Kate Beckinsale  attended the Golden Globes in January 2006.
Kate Beckinsale  posed in January 2012 for the Underworld: Awakening press conference.
Kate Beckinsale  donned a tight black gown for the Underworld: Evolution premiere in January 2006.
In September 2006, Kate Beckinsale  sported a hot red corset dress in London.
Kate Beckinsale  gave a seductive look at the 2003 Underworld premiere in September.
Kate Beckinsale  was crowned Esquire's Sexiest Woman Alive in 2009.
Kate Beckinsale  flaunted her legs at the June 2007 NYC premiere of her husband Len Wiseman 's film Live Free or Die Hard.
Kate Beckinsale  wore a bikini on the set of a Diet Coke ad shoot in LA during April 2004.
Kate Beckinsale  showed off her figure at a Golden Globes party in January 2012.
Kate Beckinsale  paired her bikini with heels and a hat during a September 2010 visit to Mexico with her husband, Len Wiseman .
Kate Beckinsale  wore a bikini to snorkel with Len Wiseman  in Cabo during August 2008.
Kate Beckinsale  posed seductively in February 2008 at the Independent Spirit Awards in LA.
Kate Beckinsale  and Len Wiseman  were loved up on their May 2004 Cabo honeymoon.
Kate Beckinsale  showed off her legs in a short dress at a dinner in NYC in November 2011.