Catherine Zeta-Jones, 55, shows off her impressive vocals as she joins U2’s Bono to serenade husband Michael Douglas, 80, as the couple celebrate their joint birthdays

Catherine Zeta-Jones showed off her impressive vocals as she and unlikely boyfriend Bono serenaded husband Michael Douglas at the couple’s joint birthdays this week.

The actress, 55, who won an Oscar for the musical Chicago, shouted Happy Birthday with the U2 frontman, 64, holding a candlelit cake.

Catherine looked youthful and effortlessly stylish in all black as she put her arm around her boyfriend Bono before the camera turned to show Michael, 80, beaming.

She and the Sunday Bloody Sunday singer harmonized perfectly before she walked over to her husband and shared a sweet kiss.

Bono said: ‘That’s beautiful!’, while Catherine gushed: ‘Honey, what a treat!’.

Catherine looked youthful and effortlessly stylish in all black as she put her arm around her boyfriend before the camera turned to show Michael beaming

Michael shared the clip on his Instagram and captioned the post: ‘What a beautiful gift! Thank you all for your sweet birthday wishes and messages! We love you all!’.

It comes after the Welsh actress joked that she has run out of gift ideas for her husband after 25 years together.

So the stunner decided to strip completely naked for Michael’s milestone 80th and shared the sizzling photo to her Instagram on their shared day of September 25.

Catherine poses in a luxurious bathroom wearing nothing but heels in the racy photo.

‘In my birthday suit! After more than 25 years of sharing my birthday with my husband, I’m running out of gift ideas!’ she joked, but then revealed that Michael would actually prefer a different gift.

“This is gift option two, with golf balls being option one…of course,” she told her followers.

While Michael might have preferred some golf balls, Catherine’s sizzling snap was a hit with her Insta followers, with hundreds of comments, while Elizabeth Hurley was among those who ‘liked’ the photo.

The couple each shared a loving tribute to their partner in honor of their special day on Instagram.

The actress shouted out Happy Birthday with the U2 frontman holding a candlelit cake

She and the Sunday Bloody Sunday singer harmonized perfectly before she walked over to her husband and shared a sweet kiss

Bono said, “That’s beautiful!”, while Catherine gushed, “Honey, what a treat!”

Michael shared the clip on his Instagram and captioned the post: ‘What a beautiful gift! Thank you all for your sweet birthday wishes and messages! We love you all!’

Catherine won an Oscar in 2003 for her role in the musical Chicago (photo)

Catherine posted a photo of her and Michael enjoying their birthday together 25 years ago, at the start of their relationship.

Michael had his arms around Catherine and kissed her on the cheek as she smiled at the camera.

She captioned the show: “Congratulations to Michael and me! This was us on our anniversary 25 years ago! I love you with all my heart.’

Catherine also revealed that the photo was taken by their friend, photographer Jean Pigozzi, during a night out in New York.

The mother-of-two, who shares her children with Michael, also posted a black and white photo of Michael on her Stories and wrote: “Congratulations to my husband.”

Meanwhile, Michael posted his own stunning photo of Catherine and wrote: ‘To my birthday sister, I love you with all my heart! May your new year be the best!

In the comments section, Catherine replied, “Thanks darling!!!!”

Earlier this year, Michael opened up about the moment he realized his wife was ‘the one’ during an interview for TV show Lorraine in May.

The Basic Instinct star took a trip down memory lane as he fondly recalled the moment he fell in love with Catherine, and it all had to do with their shared passion, golf.

Speaking to Ross King, he said: ‘You know, Catherine loves golf. That was actually the closest we came to each other for the first time.

“It looked good and I said, ‘What do you think of golf?’ She said ‘Oh, I love golf!’, and I said ‘Oh, you too?’. That’s too good to be true.’

Catherine Zeta-Jones Joked She’s Running Out of Gift Ideas for Her Husband Michael Douglas After Sharing a Birthday for 25 Years

The Welsh beauty decided to strip completely naked for Michael’s milestone 80th and shared the sizzling photo on her Instagram

The mother of two, who shares her children with Michael, also posted a black and white photo of Michael on her Stories and wrote: ‘Happy birthday to my husband’

Meanwhile, Michael posted his own stunning photo of Catherine and wrote: ‘To my birthday sister, I love you with all my heart! May your new year be the best!’

In the comments section, Catherine replied, “Thanks darling!!!!”

“Yeah, she’s playing well,” Michael added.

Discussing his upcoming brand new role as Benjamin Franklin in the AppleTV+ drama miniseries of the same name, he said, “It’s been a great few years.

“I’ve done things I’ve never done before, comedy, which I’ve never really done. I’ve never done a green screen.’

The Hollywood power couple met in 1998 at the Deauville Film Festival, where the actor was promoting A Perfect Murder with Gwyneth Paltrow.

Catherine was there in support of her film The Mask of Zorro with Antonio Banderas.

Michael told her shortly after they met, “I want to be the father of your children.”

The couple married at The Plaza in New York City in 2000 and welcomed son Dylan, 23, and daughter Carys, 20, shortly after.

Michael also has son Cameron, 44, from a previous marriage.