Nicole Kidman offers a peek into Keith Urban’s birthday celebration: “Happiest of birthdays my love”

Keith Urban celebrated his 54th birthday on Tuesday, and his wife, actor Nicole Kidman, didn't let the day go by without marking the occasion. On social media, she posted a sweet, simple tribute to her country star husband.

Keith and Nicole tied the knot in 2006. They are parents to two daughters, 13-year-old Sunday Rose and 10-year-old Faith Margaret.