Keith Urban has an incredibly busy career in country music, but that doesn't stop him from writing his wife love letters every chance he gets.

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In fact, the Somewhere In My Car singer insists on writing his wife, actress Nicole Kidman, a letter for every night they spend apart. On Wednesday, the musician told Taste of Country that the letter writing is simply part of what marriage means to him.

The foundation of their marriage seems to be built on support for one another both personally and professionally.

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The singer attends red carpet events with his wife, who in turn accompanies him on tour every chance she gets. Last month the pair were seen getting cozy at the 87th Annual Academy Awards, where Kidman was serving as a presenter. They remained attached at the hip as they arrived at the theatre and were later shown snuggling up in their chairs as they watched the show.

Urban isn't shy about admitting how much his wife means to him either. On Monday the 47-year-old told People that his wife is his "priority" in life. As long as he remembers that, he believes that the rest will fall into place. Without her, his life with essentially become as unstable and chaotic as "Jenga".

Urban and Kidman tied the knot in 2006 after meeting at an event in Los Angeles. They live together in Nashville with their two daughters, six-year-old Sunday Rose and four-year-old Faith Margaret.

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