Nicole Kidman and Keith Urban's Daughters Spend New Year's Eve 'Watching Daddy' Perform

Among Keith Urban‘s wide legion of fans, two undeniably stand out: his kids!

On Sunday evening, the country legend took the stage during Jack Daniel’s Music City Midnight: New Year’s Eve in Nashville, Tennessee, performing a variety of songs made famous by artists who died in 2017 like Chris Cornell, Chuck Berry and Troy Gentry.

Cheering and dancing from the sidelines? The musician’s daughters Faith Margaret, 7, and Sunday Rose, 9, as shown in a clip mom Nicole Kidman shared to Facebook on Monday.

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The animated evening took place three days after Faith celebrated her 7th birthday. To mark the occasion, her parents used social media to share an image of a large number 7, taken from a window that looks out on the Sydney skyline.

Wrote Kidman, 50, in her post, “Happy Birthday to our baby girl who is now 7. You are so gentle and kind and loving and bring us joy joy joy darling girl. It is a blessing to be your parents.??????”

“HAPPY 7th BIRTHDAY FEEF – we LOOOVE you. Mum and Dad xxxxxx,” chimed in Urban, 50.

The spouses are generally pretty private when it comes to their girls, but have opened up in the past about some of their core parenting values.

“We’re a very intimate family and we discuss many things,” the Big Little Lies actress told PEOPLE in October, sharing how they addressed the Las Vegas shooting in their household. “We take responsibility of parenting so seriously, but we also keep an open conversation between our kids.”

She added, “Sometimes we need guidance, too, but our family is based on an enormous amount of questions, love and support, and we’re trying to guide a 6-year-old and 9-year-girl right now into the world.”