Keith Urban's marriage to Nicole Kidman is being tested once again as a rumor has surfaced that the country singer spent some time with another woman while his wife was away.

In an item on Woman's Day Australia, it was reported that the "American Idol" judge was spotted in San Francisco more than two weeks ago with a blond woman that wasn't his wife.

"There seemed to be chemistry between them," an onlooker told the source above. "He had a real swagger about him. Not surprising since there was such a beautiful woman in his company."

At that time, Urban's wife was in London for her ongoing "Photograph 51" play.

There's no word yet on how the couple of almost a decade has reacted to the latest rumor to hit their marriage. But days after the purported sighting of Keith Urban with another woman, he reunited with Nicole Kidman in London and the pair looked seemingly happy to be back in each other's arms. As reported by Just Jared, the "American Idol" judge was even there for two days to support his wife.

This is not the first time that the "American Idol" judge has been dragged into cheating rumors. Back in August, he was also linked to Kelsie Ballerini. But as clarified by Gossip Cop after talking to Urban and Kidman's representatives, the rumors were apparently not true.

With a summer of celebrity divorces recently, the "American Idol" judge told Entertainment Tonight in August as well that he and the "Photograph 51" actress won't be separating as they were each other's priority. The country singer even made it a point to be with his wife as much as possible just like her debut in "Photograph 51."

"I had an opening of the play three nights ago, and he's in the middle of a tour in the States," Kidman told DuJour last month. "He flew 10 hours to come and be with me for the night, and then he flew back and did a gig. That for me is love in action. That's extraordinary. But I would do the same for him and that's what we've committed to as a couple."

The couple of almost a decade and their kids also don't seem to want to be apart too long.

"Oh no, ten days is way too long," Nicole Kidman shared to Mail Online about her marriage to Keith Urban. "We're seven. And we rarely stretch it to that. The kids don't like the separation."