Keith Urban Nicole Kidman

Keith Urban Gets Audience to Serenade Nicole Kidman for Her Birthday

It's going to be hard for Keith Urban to top this rendition of "Happy Birthday" next year. In order to celebrate Nicole Kidman's birthday, Urban lead thousands of fans in a special sing-along dedicated to his wife of 12 years.

Urban took a moment out of his Country USA Festival set in Wisconsin to film a half-selfie, half-crowd shot video of adoring fans singing the Birthday Song to Kidman using Urban's nickname for her, "Baby Girl," instead of "Nicole," giving it an even more personal touch.

Kidman shared the sweet video to her Instagram, letting the crowd know that she appreciated the sentiment that was recorded the night before her birthday on June 20.

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Kidman and Urban seem to have their plates full lately. Kidman was rumored to be seen filming scenes for HBO's "Big Little Lies" on her birthday, while Urban will continue his Graffiti U tour all the way through Nov. 3 this year. But the pair are known for their devotion to one another despite their busy schedules.

Two years ago, when the Australian couple celebrated ten years together, Urban reflected on their relationship from the time when they were married on June 25, 2006 in Sydney, Australia to when they had their two daughters, Sunday Rose and Faith Margaret (adding to the family Kidman adopted when she was married to Tom Cruise, Isabella and Connor.) Urban told ET that the key to keeping their relationship fresh is "Dating. Keep dating your wife — that's it...I'm still trying to get her to go out with me."

Just a couple of months ago, Kidman showed her appreciation for country music by joining Urban onstage during a performance of "Parallel Line" at Nashville's Houston Station for a Spotify event. When Oscar-winning Hollywood actress sang along with her country star husband, it was clear how in love the pair truly are.

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