They're one of the most private couples in Hollywood, and recently welcomed a daughter despite the fact that nobody even knew they were expecting.
On January 2, Benji Madden and Cameron Diaz announced her arrival on Instagram, writing, “We are so happy, blessed and grateful to begin this new decade by announcing the birth of our daughter, Raddix Madden. She has completely captured our hearts and completed our family."
The post continued, "While we are overjoyed to share this news, we also feel a strong instinct to protect our little one’s privacy. So we won’t be posting pictures or sharing any more details, other than the fact that she is really really cute!! Some would even say RAD. From our family to all of yours, we’re sending our love and best wishes for a Happy New Year and Happy New Decade."
So, clearly they will continue keeping things private in the life of their new daughter, as much as they did with Cameron's pregnancy.