Keith Urban Celebrates Nicole Kidman's Birthday with Greek Food and Lady Gaga

Capitol NashvilleKeith Urban treated wife Nicole Kidman to a low key night out in Sydney to celebrate her 45th birthday Wednesday.  According to Australia's Herald-Sun, the couple ate at the Greek-Australian restaurant The Apollo with some other family members before going to see Lady Gaga's concert that night.

Keith and Nicole have another big celebration coming up.  They'll celebrate their sixth wedding anniversary on Monday.

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