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A photo posted by Keith Urban (@keithurban) on

On Keith Urban and Nicole Kidman's 10th wedding anniversary, the country singer is reminiscing about a day that changed their lives forever: The day they met.

The two met in January 2005 at the annual G'Day LA: Australia Week gala in Los Angeles. Urban, 48, posted on his Instagram page Saturday a photo of him and Kidman at the event.

"Our very first photo together 2005, minutes after being introduced to each other," he wrote. "HAPPY ANNIVERSARY BABY. LOOOOOOOOVE YOU!!!!!!!!! xxxxxxxxx - KU."

The 49-year-old Oscar-winning actress attended the party with her sister Antonia and wore a glittering black fringe dress. Urban was dressed in a black velvet sports jacket and collared shirt opened to reveal much of his chest. Producer Kerry Roberts introduced Urban to Kidman, The Daily Telegraph Australia reported.

The actress has said that at the time, she was in a "very wary, very damaged'' state of mind and was hardly responsive to a potential new suitor. Less than four years earlier, she and Tom Cruise had finalized their divorce after about 10 years of marriage.

"I thought, 'Gosh, I'd really like to meet her,'" Urban said about Kidman on The Oprah Winfrey Show. "I have never met her and we're both from Australia and I'm sure we share some similar journey to get where we are. She walked into the green room where I was...she glided across the room, like floated. I don't know how she did it. It was out of this world."

Urban told Winfrey he was a little bit intimated about meeting the actress.

"There was a split moment where she wasn't with anybody and there was nobody around and I thought, 'Oh, I'll just go up and say hi,'" he said. "And I plucked up the courage to go and do it very nervously and trying to be all cool. She was very pleasant and everything. There was that moment of waiting for the next thing to be said, at which I didn't know if I was bothering her or what was going on, so I just sort of said, 'Well, nice to meet you' and I walked away."

"And she stood there for a moment and she walked away and then I thought, 'Was I supposed to say more?' A friend of mine said, 'I think she wanted to talk to you,'" he continued. "I went back over and apologized and we just started talking and just really clicked."

Urban and Kidman soon began dating and married on June 25, 2006 at a church in Sydney. They have two daughters, Sunday Rose, 7, and Faith Margaret, 5.