Hollywood A-listers Catherine Zeta-Jones and Michael Douglas surprised diners when they enjoyed a double celebration at a popular Dublin spot on Wednesday. The power couple turned heads as they enjoyed an intimate lunch at The Gables in Foxrock, south Dublin , on Wednesday to celebrate both their birthdays. Michael celebrated his milestone 80th and Catherine celebrated her 55th birthday.

READ MORE - Michael Douglas hits out at social media for 'invading his privacy' and ruining parties READ MORE - Catherine Zeta-Jones, 53, showcases ageless beauty and channels Morticia Addams An insider said the loved-up couple just walked in with no reservation, surprising fellow diners when they arrived. It comes after Catherine set tongues wagging after she shared a striking snapshot of herself posing in her 'birthday suit' to mark her birthday on Wednesday. Taking to Instagram on her special day, the Welsh star uploaded a black-and-white throwback image of herself rocking nothing except a pair of towering strappy heels.

She is pictured posing in a lavish bathroom complete with slabs of marble, an ornate sink and a large bathtub. For added va-va-voom, Catherine has her raven tresses billowing behind her in a dramatic fashion. "In my birthday suit! After over 25 years of sharing my birthday day with my husband, I am running out of gift ideas!," she noted in her caption.

"This is gift option two, golf balls being option one...

of course." Catherine's husband Michael Douglas was also quick to.