They have been married for over 21 years.
And Catherine Zeta-Jones celebrated another joint birthday with husband Michael Douglas in style on Friday as they enjoyed a lavish meal in Sardinia after stepping off a friends yacht.
The actor, 78, and actress, 53, were both born on September 25 though Michael was born in 1944 while Catherine was born in in 1969.
Catherine looked effortlessly chic in a striped top, teamed with a pair if black trousers and white trainers.
She accessorised with a styling cap, a pink scarf and a shoulder bag as she walked behind Michael, Lawrence Stroll and his wife Raquel Diniz.
Meanwhile, Michael bundled up in a grey jumper, black jeans and dress shoes at the Hotel Cala di Volpe in Porto Cervo.
Michael and Catherine both took to Instagram to publicly wish one another a happy birthday.
To acknowledge his wife's special day, the Wall Street actor posted a throwback photo of the pair and wrote: 'Happy Birthday Catherine! I love you always & forever'
Catherine then shared a recent selfie of the two of them and an older one, penning: 'It’s our Birthday!! After 24 years of celebrating our special day together, I still look forward to it. I love you!!! a la votre!!!!!!!!!!'
It comes after Catherine paid tribute to her son while watching him graduate from the prestigious Brown University in May.
The Tony Award-winner was in attendance as Dylan- collected his degree certificate after majoring in political science.
Taking to Instagram following the ceremony, Catherine shared a photo of her son dressed in traditional mortar and gown as he accepted a kiss from his proud mother.
Captioning the image, she wrote: 'Graduation congratulations to my boy, my pride, my joy, Dylan. I am inexplicably proud of you and I love you beyond words.'
The previous evening he was reduced to tears after his uncle Lyndon Jones - Catherine's younger brother - made a surprise appearance at his pre-graduation dinner.
Stunt performer Lyndon, 50, greeted the speechless student with a bellowing song while he dined in Rhode Island with a group of friends.
Capturing the moment in a short video, Catherine wrote: 'Surprise! Surprise! Pre-graduation dinner when my son Dylan sees his Uncle who came all the way from Wales to celebrate this amazing milestone.
'It was tough keeping this a secret but it was priceless.'
Brown, a private Ivy League research university, has previously been attended by celebrities including Tracee Ellis Ross, Laura Linney, John Krasinski and Harry Potter star Emma Watson.
Last year Catherine took to Instagram to share a photo of herself and Dylan after she paid him a visit at his college campus.
Catherine and Michal's younger child, daughter Carys, 19, graduated from high school in 2021 and is expected to follow her brother's educational path by also attending Brown.
Sharing images from her graduation ceremony, Catherine wrote: 'What a proud day as our daughter Carys graduates with honors for her International Baccalaureate! You rock, we love you.'
Proud dad Michael added: 'Congratulations to Carys and the entire class of 2021! Your Mom and I are so proud of you!'
