Busy couple Keith Urban and Nicole Kidman were spotted at the Sydney, Australia airport on July 6 with their little girls, Sunday Rose and Faith Margaret, in tow.

Kidman, who is obviously a proud mom, smiled over Sunday Rose, whose hand was locked in her father's as the family entered the busy international airport. Kidman carried six-month-old Faith Margaret, draped in a pink blanket, in her arms.

This isn't the first time that the family has been spotted down under recently. Just a few weeks ago, as daddy Urban was elsewhere preparing for his U.S. tour, Kidman and her girls entered Australia on what was baby Faith's first trip to her parents' native land.

We're sure everyone was excited to see Urban this time around! Though he was absent last time, he likely flew into Australia to celebrate his eldest daughter's third birthday on July 7. Two weeks ago, he and his wife celebrated five years together, and we can tell that their two girls are growing like weeds before their eyes -- and ours.

Speaking of things that are quick to climb, Urban's single 'Long Hot Summer' is racing up the charts following his last track, 'Without You,' which reached No. 1 on the Country Songs chart and No. 52 on Billboard's Hot 100. Keith Urban's 2011 Get Closer tour rolls through Hershey, P.A.'s Giant Center on Thursday, July 7, with almost daily stops from here on out.

Watch Keith Urban's 'Without You' Video