06/22/2007 AT 03:00 PM EDT
got a very special gift for her 40th birthday this week – a visit from her husband, Keith Urban
Urban, who has been touring the United States on his Love, Pain & the whole crazy World Tour, flew in to celebrate with Kidman, who is busy filming Baz Luhrmann's epic Australia
The country singer arrived in Sydney from the U.S. early Tuesday morning before transferring to a private jet that took him to the beach town of Bowen, on Queensland's Whitsunday Coast, where Kidman is filming with Hugh Jackman
, according to sources.
On Wednesday, Kidman's actual birthday, the couple watched a surprise fireworks display for the birthday girl from a mountaintop lookout in Bowen. They also traveled to nearby Horseshoe Bay, according to another source. Urban, 39, is scheduled to resume his U.S. tour next week.
Also for Kidman's birthday, director Luhrmann, who directed her in 2001's Moulin Rouge
, put together a bash for his leading lady that included caterers flown in from the States, Australia's Daily Telegraph
Locally, Bowen Mayor Mike Brunker had his own contribution to make to the festivities, telling the Telegraph
, "My wife spent all day baking, now we're just waiting for Nicole to arrive."