Nicole Kidman marked nearly two decades of marriage with Keith Urban by sharing a heartfelt tribute to the country star on their 19th wedding anniversary.

To mark the special occasion, the Big Little Lies star, 58, posted a sweet black and white photo of them sharing a sweet moment backstage at one of his shows.

In the image, the Oscar winner can be seen with one arm draped lovingly over her husband’s shoulders as he held her hand.

The happy couple, who shares daughters Sunday Rose, 16, and Faith Margaret, 14, both closed their eyes as Kidman rested her forehead against Urban’s head.

‘Happy Anniversary Baby ❤️ @KeithUrban,’ she captioned the post, which received more than 25,023 likes in less than an hour.

Within minutes, the Somebody Like You hitmaker commented a single red heart emoji.

The lovebirds wed back in 2006 during a traditional Catholic ceremony at the Cardinal Cerretti Chapel in her hometown of Sydney.

Kidman and Urban married five years after her split from actor Tom Cruise, with whom she shares two adopted children, Isabella and Connor.

In 2022, the singer insisted that he and his wife are ‘as normal as you get’ on an episode of Jessica Rowe’s podcast series The Big Talk Show.

He also spoke about the very first time they met at the G’Day LA event in 2005, saying he thought the stunning Hollywood star was ‘well out of his league.’

‘We’re just a couple who work things out, go through things together, life, and support each other the best way we can and try and raise our family,’ Keith explained.

‘Underneath it all, we’re as normal as you can get I reckon,’ he claimed, before reflecting he was ‘not in a great place’ when they first met.

‘[She] seemed well out of my league at that time in my life,’ he said.

‘I was not in a great place at my life, struggling with a lot of things, not in a million years would someone like that see anything in me… The fact that became what it is meant to be is astounding.’

Nicole Kidman marked nearly two decades of marriage with her husband Keith Urban by sharing a heartfelt tribute to the country star on their 19th wedding anniversary; seen in 2017

The lovebirds wed back in 2006 during a traditional Catholic ceremony at the Cardinal Cerretti Chapel in her hometown of Sydney

He also sweetly described his wife as ‘ethereal, angelic, other worldly, very mystical and then completely down to earth at the same time and very funny.’

Last year, Urban reflected on how he nearly destroyed his marriage, not long after they walked down the aisle.

‘We got married in 2006, and barely four months into our marriage, the addictions that I had done really nothing about blew our marriage to smithereens,’ he said while  presenting at the AFI Life Achievement Award Gala Tribute to Kidman last year.

Urban revealed that he was struggling with addiction when he first met Nicole and with her support he managed to eventually pull through.

To mark the special occasion, the Big Little Lies star, 58, posted a sweet black and white photo of them sharing a sweet moment backstage at one of his shows

‘Happy Anniversary Baby ❤️ @KeithUrban,’ she captioned the post, which received more than 25,023 likes in less than an hour

‘Four months into a marriage, and I’m in rehab for three months with no idea what was going to happen to us.

‘Nic pushed through every negative voice – I’m sure even some of her own – and she chose love.

‘And here we are tonight 18 years later. Her capacity to love is like no one I’ve ever met,’ he concluded.

The father-of-two, whose previously said he grew up watching his father’s heavy drinking, previously said it took him ‘a long time to get sober’ because he didn’t ‘recognize’ his alcoholism.