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.

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 Fighter, while pointing at his new guitarist, Maggie Baugh, 25, as well as name-checking her during another gig while performing the same track, which he wrote about his relationship with Kidman.

The footage was brought to light in the wake of the split, amid rumors Urban has already moved on from Kidman and his dating “two women.”