Upping the glamour, she teamed the show-stopping number with maroon stilettos and styled her trademark blonde tresses into flattering loose curls.
Kurt - who has been dating Goldie since 1983, despite the pair famously never marrying - was sharp-suited in a black tuxedo for the special joint ceremony.
We've never had a celebration like this before."Praising his partner, Kurt said: "Goldie, to you I owe my wonderful life.
Kate immediately dubbed their chat as 'very dangerous' as she had 'never interviewed Mommy' before.But the Oscar winner is not short of advice, telling Interview and her offspring her advice for young actors is simple - do not dream of being an actor.Not sharing: Despite Kate (pictured earlier this month) followed in her mom's famous footsteps, the 38-year-old revealed her mother had never given her any advice - as 'it's mother-daughter, not mother-business'Goldie told Kate: 'I believe you have to start with a craft; you don't just start with a dream. If you want to pursue acting, then you go to acting class... But what will carry you through your life is the authenticity of who you are.She says she "would have been long divorced'' if she had gotten married.She says choosing not to get married "gives you the freedom to make decisions one way or the other,'' adding that she and Russell "liked the choice.''Hawn says "not every relationship works'' and adds that movie stars may have "a harder time because the camera is on them all the time.''Hawn has a son, Wyatt, with Russell and two children from her marriage to Bill Hudson: actors Oliver and Kate Hudson.