Nicole Kidman's relationship with Keith Urban has turned sour, according to the Aussie's pals, who claim her estranged husband is deliberately trying to "embarrass" her.

RadarOnline.com can reveal sources close to the Hollywood actress, 58, feel Urban, 57, no longer seems to care about her feelings. Article continues below advertisement

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An insider said: "Keith looks as if he's out to try to publicly embarrass and hurt Nic. He's always been the quieter one, but now that seems to have changed."

Last week, RadarOnline.com revealed Urban sang, "I was born to love you" , from his song The Fighte r, while pointing at his new guitarist, Maggie Baugh , 25, as wel

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