Madden also shared a picture of Nicole walking a horse while wearing a gold dress.
The birthday post comes after Madden credited his wife for helping him overcome a broken home.
Speaking to People earlier this year, Madden said: 'When you grow up in a broken home, there's something about finally find love and security in your family.’
He added: ’I give my wife a lot of credit. She's an incredible partner and really supportive.'
Richie and Madden have two children - Harlow Madden, Sparrow Madden - together.
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