The 47-year-old retired actress and 40-year-old musician took to Instagram on Jan. 3 to announce the happy news of their daughter Raddix's birth.
"Happy New Year from the Maddens!" they wrote. "We are so happy, blessed and grateful to begin this new decade by announcing the birth of our daughter, Raddix Madden. She has instantly captured our hearts and completed our family. 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 poictures 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..."
Cameron and Benji started dating in 2014 and tied the knot in 2015. The two have reportedly been wanting to start a family since 2016, when People reported Cameron "wants to be a mom."
If you're surprised to hear Cameron was pregnant, that's because the pair have always been very quiet about their relationship, so it's not unusual that they would have managed to keep this under the radar for nine months without it getting out.