'I was ‘enslaved’ by alcohol until Nicole saved me.' A frank confession by Keith Urban

The couple have been happily married ever since, and still rely on one another for support.

Keith Urban and Nicole Kidman are among the few celebrity couples who seem to have a lasting, loving relationship. But while they've always seemed to have their lives together on the outside, that was not always the case.

As reported by Shared, Urban recently revealed that his wife was his bedrock, and had helped to save his life when it was spiralling out of control.

Urban and Kidman first met at an event honoring Australian entertainers. Kidman claims that she quite literally "bumped into" Urban, and the pair felt an instant connection.

At the time, Kidman was just recovering from her messy divorce from actor Tom Cruise, and Urban was the perfect opportunity for her to start her life over.

Following a short whirlwind romance, the couple were engaged less than a year after they had met.

"Meeting her and getting married wasn't life-changing, it was life-beginning," the singer said about their wedding. "It was literally, like, 'OK, life starts.'"

But just months later Urban's inner demons threatened to tear their new life apart.

He had been battling against alcoholism for a long time, and it plagued the happy couple from the very beginning of their marriage.

Not only was he drinking to excess, but he was also balancing his alcohol intake with the use of ecstasy and cocaine, ensuring a permanent high.

"I knew I wasn't at my full potential, and that's what was starting to get to me. I was enslaved ... I was living a very, very small life," he explained of that time in his life.

Just four months into their marriage, Kidman realized she would have to take drastic action or risk losing her husband. So she staged an intervention.

Since then, Kidman has helped Urban to keep his head above water, and he is vocal about how much credit she deserves for helping him to remain sober, admitting that she had helped him to shake off the shackles of addiction.

The couple have two children together, Faith and Sunday, and together they keep each other strong.