Keith Urban and Nicole Kidman's separation is threatening their 19-year marriage, but the couple have actually been an item for a clean 20 years. On Monday (Sept. 29) it was revealed that Keith Urban and Nicole Kidman are living separately. RELATED: Keith Urban's Daughter Is a Magazine Model Now [Pictures]How Did Keith Urban and Nicole Kidman Meet? Urban and Kidman married in Australia on June 25, 2006. Keith Urban, Nicole Kidman Relationship TimelineKeep scrolling for a full picture timeline of Keith Urban's relationship with Nicole Kidman.