Keith Urban has a sweet reputation for posting numerous loving tributes to his "babygirl," wife Nicole Kidman, on social media—but on Saturday (July 7), the singer paid tribute to another special baby girl in his life.

His eldest daughter, Sunday Rose, turned 10 years old that day—and both Mom and Dad commemorated double digits by sharing a beautiful family photo featuring the couple gazing down at her as a tiny infant. Urban re-grammed Kidman's original post to his own account, and shared her sentiment, "You are our joy, Sunday Rose."

Sunday's birthday falls just shy of a couple of weeks after Urban and Kidman's wedding anniversary (they celebrated their 12th this year). The couple also have daughter Faith Margaret together, who will be 8 in December. Kidman has two adult children, Isabella and Connor Cruise, whom she adopted during her previous marriage to actor Tom Cruise.

Urban is candid about the challenges of maintaining a marriage and a family while also meeting the demands of the careers he and his wife have chosen. The two strive to raise their children as normally as possible. Urban told several media outlets backstage at 2018 CMA Music Festival (quote via the Boot). "We're just like any married couple, trying to figure out what works and what doesn't work. Trying to balance work and family life is challenging for everyone, and it's no different for us."

Watch Keith Urban and Nicole Kidman Sing Together:

See Keith + Nicole's Sweetest Pictures Through the Years