Keith Urban has revealed that his latest album is mostly written about his wife Nicole Kidman.

Urban, who has recently left rehab, says that the Australian actress inspired him to turn his life around.

He told German magazine Stern: "There's a handful of songs on the record that were inspired by her and by the way my life changed when we met � so much for the better.�

"She was a good ray of sun in my life. I didn't intend to write any songs about her. I just wrote, and obviously what was coming out was how I was feeling."

And he says that it was his marriage that got him through the 90 days in rehab.

"We've gone through a lot in the last three months," he said. "And I think it's been the strength of our marriage (that) has carried both of us through."