When Olivia Newton-John died on Monday (8/9), Keith Urban and Nicole Kidman issued a joint Instagram post with an image of the three of them together, saying in part, “Livvie brought the most divine light into the world.”

I interviewed Keith this week and asked how he knew Newton-John, and he shared an extraordinary connection that he, his wife, and Olivia had. He told us, “There was an event in Los Angeles called G’Day LA in 2005 where they were honoring me and Nic, who I hadn’t met, and Mel Gibson, the three of us Australian who have done well in America and they asked if I wanted anybody, in particular to introduce me. I had just written with Olivia so I asked Olivia if she would do it for me, so she was the person who introduced me that night, that fateful night when I met my wife. So she holds that very special role in our past.”

Urban added of the music icon, “Olivia is one of those people that for so many Australians, particularly, has just always been part of the fabric of life. She was there in the 70s and has kinda just been there for all of my life.”

Keith said when he first met her, he was a bit starstruck, “I met her at a songwriting retreat, and I was a bit of a fanboy (laughs). I was like, ‘Oh my gosh, I’m meeting Olivia Newton-John,’ and it was surreal to meet her, and she couldn’t have been more down-to-earth, kind, friendly, warm, funny… everything I thought she would be; she was exactly that. And then we got to write a little more over the years.”

10 Of Olivia Newton-John's Finest Country Songs, Ranked