Nicole Kidman - Nicole Kidman Celebrates 45th Birthday At Lady Gaga Concert

Kidman had to wrap up warm, with temperatures in Sydney dropping as low as 4 degrees at the moment, but Keith made sure that she still had a day to remember. After dining out at The Apollo in Potts Point, Nicole and her hubby headed off to see Mother Monster in concert. In a few days' time, (June 25, 2012), the couple will have another landmark to celebrate, as it will be their sixth wedding anniversary.

They currently share a home in the Milsons Point area of the city and Keith recently revealed that if it wasn't for Nicole, he wouldn't currently be working as a judge on the Australian version of The Voice. He told The Herald Sun "It wasn't so much that she talked me around - it was more her saying, "let's see if we can make the schedule work." Kidman's a fan of the US version of the show, so was keen for Urban to take part in the show down under. Now that he's embroiled in the show, though, he's loving it and keen to take part again. "I probably wouldn't need to be talked around to do it again. I'd love to do it again," he told reporters.