The Pearl Harbor star blew out the candles on a chocolate cake at G-A-Y on Thursday night (28Jul16).

Club owner Jeremy Joseph presented the giggling star with the cake, decorated with a brown ribbon, icing and strawberries, with the words 'Happy Birthday Kate' piped on top in white chocolate icing.

Kate actually turned 43 on Tuesday (26Jul16) and celebrated early by dining at celebrity hotspot Scott's Restaurant in London with old pal David Walliams last Friday (22Jul16), sparking gossip of a new romance following the pair's recent marriage break-ups.

The British comedian once described Beckinsale as his ideal woman, but sources insist they are good friends.

Kate has since denied she was dating David, tweeting: "This is my dear friend, @davidwalliams.

"If I ever see him naked I will immediately tattoo a (penis) on my face for clarity," she quipped, using an eggplant emoji to symbolise the male genitalia. "Until that appears, everyone can relax and know we are friends, as we have been for the last 2000 years."

She then cheekily added, "Ps The size of the tattoo is unlikely to be actual size. As far as I know."

Her tweets clearly amused David as he also posted the messages on his Twitter account.

Kate has still yet to confirm reports she has split from her director husband Len Wiseman. The couple wed in 2004. Meanwhile, David is also single after divorcing Dutch model Lara Stone last year (15).