Reality may be starting to sink in for Keith Urban following his divorce from Nicole Kidman. 

The country star, who parted ways with his Hollywood star wife in September after 19 years of marriage, is allegedly 'wondering if he's made a huge mistake' following their split. 

After recently performing private shows for members of Donald Trump's inner circle, the 58-year-old is reportedly feeling more isolated than ever.

'He's got to pay the bills - and divorce lawyers don't come cheap,' a source told Woman's Day magazine of the couple's settlement. 

Keith has forked out for the couple's daughter Sunday Rose and Faith Margaret's private school tuition and, according to the publication, needs to make a living in any way he can.  

'It's a lonely existence for Keith right now - he's exhausted, isolated and looking at a future he never imagined,' the source added. 

'He's also lost his best friend, Nicole, who was also his greatest supporter in life and he's wondering if he's made a huge mistake.'

Keith made headlines in November after he performed at an Australian billionaire's party at Mar-a-Lago.

The private gig, hosted by Anthony Pratt, was attended by Donald Trump, who received US $10 million from the Visy executive chairman for his election campaign.

Nicole and Keith's breakup shocked fans earlier this year - and the Oscar-winning actress had reportedly been dreading the public's response for months prior.

'She's been stressed because she knew the separation would eventually become public and she was dreading it,' a source told People in early October.

'But she's surprisingly level-headed and calm. Now that it's out she's just focused on what's ahead and her girls,' the insider said of the couple's daughters Sunday and Faith.

The actress and musician's separation was confirmed by Daily Mail on September 29, and Nicole filed for divorce on September 30, citing irreconcilable differences.

Their marriage began to fall apart at the beginning of summer 2025. The split was reportedly a long-term development, stemming from months of quiet separation and diverging paths due to work commitments, according to Daily Mail sources. 

Nicole has requested to be the primary residential parent in the custody arrangement.

The pair met at the G'Day LA gala ball in January 2005.

In a 2013 appearance on The Ellen DeGeneres Show, Nicole confessed it wasn't until four months after they met that Keith asked her out.

She recalled: 'I'm like, "You didn't love me at first sight, you didn't notice me," and he's like, "Yes I did but I just didn't let on," but we kind of met and then about four months later he called me.'

On the Australian talk show Interview in 2018, Keith admitted he had to muster the confidence to call the movie star.

'I'd never have thought she'd see anything in a guy like me. But at some point I plucked up the courage to call those numbers, and she answered,' he said.

'We started talking, and we talked and talked and talked and talked, and it was effortless,' the singer added.