Nicole Kidman and Keith Urban have been married for 18 years and the famous actress reveals the secret that keeps their marriage alive.

In an interview with W magazine, the Oscar-winning actress said that they have a “double shower” in their house.

“Double showers are the key to a successful marriage,” revealed Nicole Kidman.

In fact, he made another revelation that in their house they also have “separate basins” in their bathroom.

The ‘Babygirl’ star made the revelation by saying she sings in the shower, just like her country singer husband.

The actress and Urban married in June 2006 and have since had daughters Sunday, 16, and Faith, 13.

Kidman was previously married to Tom Cruise, with whom she adopted daughter Isabella, 32, and son Connor, 29.

When she and Urban celebrated 13 years of marriage in 2019, the singer posted an Instagram tribute about the “magic, music, romance, wild adventures and continued discovery of pure love” in their relationship.