2010-02-05 17:38:27 -

KEITH URBAN has credited his wife NICOLE KIDMAN with improving his songwr= iting - because their relationship has a "profound" effect on his music.
The couple married in 2006 and two years later they welcomed their firs= t child together, daughter

Sunday Rose.
Urban admits his love for the Hollywood actress is clear in his music, = and reveals his track My Heart Is Open, from his 2009 album Defying Gravi= ty, is based on a poignant conversation between the pair.
He tells People.com, "It's been a profound impact (on my songwriting), = to meet somebody who offered me a life and helped me become the person I = wanted to be. (For instance) my wife and I had been out a couple of times= and I wondered how she felt about me. It came out as, 'How is your heart= ?' She said, 'It's open.' My God, what a beautiful answer." (LR/WNWCPL/ZN=