Nicole Kidman celebrates Keith Urban's birthday on stage at a hurricane relief benefit concert

Nicole Kidman thanked her husband Keith Urban for spending his birthday giving back to those in need.

On Saturday, Kidman and Urban attended the Concert for Carolina at Bank of America Stadium in Charlotte, North Carolina to raise funds for Hurricane Helene relief efforts.

The benefit concert, headlined by Luke Combs and Eric Church, included performances by Urban, James Taylor, Sheryl Crow and Bailey Zimmerman, among others.

According to The Charlotte Observer, the event grossed $24.5 million.

That evening, Kidman also made a surprise appearance on stage to celebrate her husband's 57th birthday.

But first, she helped Urban welcome Church to the stage.

“(We’re) here with all of you tonight because Eric Keith called,” Kidman said to the crowd. “I want to say that tonight is his birthday. …And he wanted to be here with you. So here we go. Eric Church called him and here we are.”

Kidman and Urban have been married since June 2006. The couple has two daughters together, Sunday Rose and Faith Margaret. In addition to her two daughters, Kidman also has a daughter, Bella, and a son, Connor, with her ex-husband Tom Cruise.

Earlier this month, Church and Combs, both of whom are from North Carolina, posted about their benefit concert, “Concert for Carolina,” aimed at helping communities recover from Hurricane Helene.

Church told “Good Morning America” ​​that this cause is so important to him because “I'm simple: born in North Carolina.”

“Without the people there and the community there, I wouldn’t be who I am today. To see something like this happen to them, to this community, to these people, is particularly devastating,” he said. “Luke and I are doing everything we can to help. For me, it’s in the DNA of what made me me.”

Meanwhile, Combs told “GMA” that Church was “the first man I called” after seeing the devastation Helene left behind.

“I know how much our state means to him and to myself, and I knew he would be willing to do anything to help,” he continued. “I had this crazy idea to do a show at Bank of America (Stadium). I think it’s going to be a really special evening.”

“But I promise it will be a once-in-a-lifetime concert,” he added at the time. “I’m really excited and proud to be a part of it.”