Keith Urban regrets as Nicole Kidman steps back into the spotlight

Keith Urban is said to be experiencing mixed emotions following his divorce from Nicole Kidman after nearly two decades of marriage.

As the Babygirl star has been making incredible sexy and youthful appearances, and with eligible guys lining up to date her, the actor is now having second thoughts about the split.

The source said to Radar Online, "Nicole's been having a real moment, she looks better than she has in years and it hasn't gone unnoticed by Keith."

"Seeing her out there glowing, looking better than ever, it has really hit home that she's not slowing down," they added.

However, the sources revealed that Kidman is putting a lot of care into her looks. "It's nothing over the top – she's taking that very controlled, subtle approach she's always had."

"She did a really intense laser treatment to smooth and tighten her skin and some other noninvasive stuff," the source said.

"She's actually a lot more conservative with plastic surgery and all that stuff than people give her credit for."

The sources claim that there's this sense that Kidman is "back on the market" and it wont take long before someone "snaps her up."

It is pertinent to mention that Kidman has already sparked romance rumours with her Scarpetta costar Simon Baker. The two were spotted holding hands and flirting at the premiere of their film.

Even if Nicole Kidman ends up with someone else, it is "tough pill to swallow" for Keith Urban as he knows how "magnetic she can be when she's like this."