Keith Urban Thanks Fans for Birthday Wishes, Posts Adorable Pic With Wife Nicole Kidman

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The Australian country crooner shared some cute photos of his b-day festivities to Twitter on Wednesday.

Keith Urban celebrated his 49th birthday with his adoring family and one super decadent chocolate cake.

The Australian country crooner took to Twitter on Wednesday to share some pics of the fun festivities, including a cute, cuddly selfie with wife Nicole Kidman, and his epic cake, which had the words "Happy Birthday Big Cat Daddy" written in icing.

"Best birthday EVER!!!" Urban wrote alongside the pics. "Love u baby."

WATCH: Keith Urban Shares First Photo He Ever Took With Nicole Kidman to Celebrate 10th Wedding Anniversary

Urban then shared his appreciation for the outpouring of birthday love from his legion of devotees, writing, "To ALL the fans, friends & loved ones for gorgeous birthday wishes, prayers, videos, & songs (yep, people actually sang ME happy birthday) … I say THANK YOU and I love you all. I feel incredibly blessed."

Kidman and Urban tied the knot in June 2006 and share two daughters, 8-year-old Sunday Rose and 5-year-old Faith Margaret.

WATCH: Nicole Kidman Gushes Over Her Husband Keith Urban's Music, Makes Him Blush

ET caught up with Kidman on Monday at the second annual InStyle Awards in Los Angeles where the 49-year-old Oscar-winner revealed that Urban's big day was going to be a low-key family affair.

"He said, 'I want nothing big. I just want the four of us together,'" she explained. "I think when you're just a really close family, the last thing you want to do is go out and have some big party. He just wants to be surrounded by his girls so that's what he's getting." Check out the video below to hear more.