Michael Douglas and Catherine Zeta-Jones Pen Sweet Messages For One Another During their Double Birthday Celebration

Michael Douglas and Catherine Zeta-Jones marked their shared birthday with touching tributes to one another, proving that their love is as enduring as it is rare.

Catherine Zeta-Jones and Michael Douglas celebrated more than just another year of life on Thursday, but they honored their unique connection as a couple who share the same birthday.

The 81-year-old "Basic Instinct" star and the 56-year-old "Wednesday" actress were both born on September 25. This year, their joint birthday festivities included heartfelt social media tributes that highlighted the depth of their bond.

Douglas posted a selfie with Zeta-Jones on Instagram, capturing a moment from the day before while she participated in the 2025 Ryder Cup Celebrity All-Star Match. In his post, he wrote: "To my birthday sister — what a joy celebrating another year with you! Congratulations on your spectacular game at the Celebrity Ryder Cup. Happy Birthday to the love of my life," tagging Zeta-Jones in the message.

Shortly afterward, Zeta-Jones returned the gesture with her own social media posts. She first shared a collage of photos of the couple on her Instagram Stories without a caption. Moments later, she posted several images to her grid accompanied by a touching note saying, "Happy Birthday Michael! Sharing this special day with you is once in a lifetime!😘"

The pair's shared birthday adds an extra layer of uniqueness to their already celebrated relationship. Douglas was born on September 25, 1944, in New Brunswick, New Jersey, while Zeta-Jones was born on the same date in 1969 in Wales.

Despite a 25-year age difference, the couple have maintained a strong marriage for nearly three decades. They welcomed their first child, son Dylan, in 2000, followed by daughter Carys in 2002. Douglas also has a son, Cameron, from his previous marriage to Diandra Luker.