It was the Hollywood fairy tale that was supposed to last forever: the statuesque Australian Oscar winner and the laid-back Nashville superstar who met at a 2005 G’Day LA gala, married barefoot on a Sydney clifftop 18 months later, and spent two decades projecting the image of unbreakable love in matching black-tie gowns and loved-up Instagram posts.

But in a bombshell that has detonated across Hollywood, Nashville and Sydney simultaneously, Nicole Kidman, 58, has quietly filed for divorce from Keith Urban, 58, after 19 years of marriage – and sources close to the couple tell Daily Mail the split is rapidly turning vicious.

Legal papers were lodged in Davidson County Circuit Court, Nashville, on November 21 under sealed conditions, with Kidman citing “irreconcilable differences” and requesting sole physical custody of their daughters Sunday Rose, 17, and Faith Margaret, 14. The filing also asks for Urban to have only supervised visitation and demands he undergo random drug and alcohol testing – a clause that has sent shockwaves through the country music community and reignited years of whispered rumours about the singer’s alleged relapses.

Most explosive of all, multiple insiders claim the couple’s teenage daughters are “secretly thrilled” that their mother has finally pulled the trigger.

“Nicole has been protecting Keith for years, putting on the perfect-wife act while she was dying inside,” a close friend of the actress told Daily Mail exclusively. “Sunday and Faith have seen the arguments, the tears, the nights Nicole locked herself in the bedroom so the girls wouldn’t hear her crying. They love their dad, but they’ve told friends they’re relieved the marriage is over. They want their mum happy – and they haven’t seen her truly happy in a very long time.”

The final straw, sources say, came during a blazing row at their $22 million Nashville mansion in October after Urban allegedly missed yet another family milestone – Sunday’s 17th birthday dinner – because he was “out with musician mates until 4 a.m.” Kidman, who had flown in from Australia after wrapping the final season of Big Little Lies, reportedly told him: “I’m done pretending we’re okay when we’re not.”

Within 48 hours she had contacted Laura Wasser – the $1,000-an-hour “Disso Queen” who handled Angelina Jolie’s divorce from Brad Pitt – and instructed her to draw up papers.

Urban, blindsided, is said to be “devastated and furious,” telling friends he had “no idea it had got this bad” and insisting he has been sober for 19 years. However, multiple Nashville sources claim the singer has suffered several quiet relapses in recent years, including a 2023 incident where he was allegedly found “passed out drunk” in a downtown bar after a show.

Kidman’s petition reportedly includes a 47-page exhibit cataloguing alleged incidents dating back to 2019, complete with text messages, hotel receipts and witness statements from household staff. One particularly damning claim: that Urban missed Faith’s 2024 school play because he was “too hungover to leave the tour bus.”

The financial stakes are astronomical. The couple’s combined fortune is estimated at $400 million – Kidman alone is worth $250 million from her film empire, Amazon’s Expats, The Perfect Couple and a lucrative Chanel contract, while Urban’s touring and songwriting royalties bring in $20–30 million a year. Their property portfolio includes the Nashville mega-mansion, a $6.5 million Sydney penthouse, a $4.5 million New York townhouse, a Beverly Hills compound and a 120-acre Tennessee farm.

Kidman is asking for the Nashville mansion (where the girls are enrolled in school), the Sydney penthouse, and the entire contents of their joint art collection – including a $12 million Keith Haring painting Urban bought her for their 10th anniversary. Urban’s team is pushing back hard, demanding 50/50 custody and claiming Kidman’s filming schedule has left her “absent for months at a time.”

Most incendiary is the custody clause. Kidman wants Urban’s visits supervised by a court-appointed monitor and backed by twice-weekly drug tests. “Nicole is terrified he’ll relapse again and the girls will be the ones who find him,” the source said. “She’s been the one picking up the pieces for years. She’s done.”

The couple’s public façade had already begun to crack in recent months. At the CMA Awards in November, Urban performed solo while Kidman stayed in Los Angeles. At the AFI Life Achievement gala in April, she walked the red carpet alone. And in a now-deleted Instagram post from October, Kidman shared a cryptic quote: “Sometimes walking away is the only option – not because you want to make someone miss you, but because you finally realise your absence is healthier than your presence.”

Friends say the marriage has been “hanging by a thread” since 2021, when Kidman spent 14 months filming in Australia and Hong Kong while Urban toured the U.S. The physical distance became emotional distance. “Keith felt abandoned,” one Nashville source said. “Nicole felt controlled. They stopped being partners and became co-parents who occasionally slept in the same house.”

Sunday and Faith, who have grown up splitting time between Hollywood sets and Nashville tour buses, are said to have begged their mother to “stop pretending everything’s fine.” One classmate at their elite private school told Daily Mail: “Sunday literally told me last month, ‘I just want my mom to be happy again. She smiles for the cameras but cries when she thinks we’re asleep.’”

Kidman has already moved into a $28 million Hidden Hills estate previously owned by Reese Witherspoon, enrolling the girls in a new school for January. Urban remains in Nashville, reportedly “drinking heavily” and telling friends he will “fight tooth and nail” to keep shared custody.

A spokesperson for Kidman declined to comment. Urban’s representative said only: “Keith is deeply saddened by this development and asks for privacy for his family at this difficult time.”

But in the brutal glare of Hollywood divorce courts, privacy is the one thing neither side is going to get.

As one longtime friend of the couple sighed last night: “They were the golden couple. Now it’s war. And the only winners are the lawyers.”