Nicole Kidman

The priest officiating Nicole Kidman's wedding to country crooner Keith Urban says the key to their lasting happiness could be as simple as keeping things spontaneous and fresh.

Father Paul Coleman, a friend to the Kidman family for nearly 30 years, told the Sydney Morning Herald that he has been advocating these methods for the couple to keep love and romance blossoming during their marriage.

"You've got to use little strategies, strategies [such as] surprises, keeping some form of romance in the relationship, even after 20 years," he said. "To me, it's wonderful that Keith's mother and father have been married for 42 years and Nicole's mother and father have been nearly the [same]. That's an outstanding achievement and something that fills you with hope."

Kidman and Urban will reportedly wed on Sunday afternoon, although the exact time and place have been closely guarded by the Australian couple. It will be Nicole's second marriage, after her 10-year union with possibly insane actor Tom Cruise broke down in 2001.

While Coleman refused to confirm where or when the service would be held, he did say the ceremony would take under an hour, and mentioned the homily he plans to deliver. He will urge Kidman and Urban to find time for one another despite their hectic schedules.

"It will be after one of the scripture readings just to put what the marriage means in the context of the lives of Nicole and Keith," he said. "You need to find time. Everyone's so busy today, with their work and paying off mortgages and looking after children; somehow we just have to find [the] time for each other."

Look out, TomKat: Kurbin is coming for you!

After finally announcing their engagement last month, Nicole Kidman and Keith Urban are on the verge of exchanging vows. The couple hase returned to Australia and confirmed it intends to tie the knot soon.

"We are very happy to be back in Australia," the film star and country music singer said in a brief joint statement. We have come home to celebrate our wedding with our family and friends."

The date and venue are yet to be confirmed, but rumors are swirling that the ceremony will be Catholic and will take place in Sydney on June 25.

The Australian media reported guests have been told to keep their schedules free for most of next week, as they'll only be told of the nuptials 24 hours ahead of the ceremony. That's more time than it took Kidman's ex-husband, Tom Cruise, to supposedly fall in love with Katie Holmes.

Kidman and Urban, both 38, met in January 2005 at a black-tie dinner in Los Angeles sponsored by the Australian government. Despite planning to get married in Sydney, the couple intend to live in Nashville, Tennessee, where the Grammy-winning Urban is based.

"I've moved to Tennessee for my personal life. I'm establishing my new home there," Kidman told a press conference in Shanghai on Sunday.