Cameron Diaz And Benji Madden Announce The Birth Of Their Baby Girl

Though the Charlie's Angels star and Good Charlotte rocker seemed like an unlikely pair, they started dating in May, were engaged by Christmas, and were married on January 5th, 2015.

This is a pretty great anniversary present!

Even though they're pretty private about their relationship, they do share some sweet moments, like this post Benji wrote on Cameron's birthday, "Happy Birthday to My Beautiful Wife. You deserve Everything Good that the Universe has to Give . I’m Yours Always Forever."

But even that post isn't as sweet as the one they just made!

"We are so happy, blessed, and grateful to begin this new decade by announcing the birth of our daughter, Raddix Madden," they shared.

So sweet!

"While we are overjoyed to share this news, we also feel a strong instinct to protect our little one's privacy," they added, "so we won't be posting pictures or sharing any more details."

"Some would even say RAD :)," added the post, making an adorable play on words with the baby's name.

Though they turned off comments on Instagram, fans of the couple took to Twitter to share their congratulations and excitement.

He retweeted his brother's announcement with three heart emojis. We're sure he's excited to be an uncle!

Joel Madden is married to Nicole Richie, and the couple have two kids together, Harlow and Sparrow.

I guess I never considered that Nicole Richie and Cameron Diaz were sisters-in-law! What a cool family.

Some fans even compared it to Kylie Jenner's well-kept secret pregnancy with her daughter, Stormi. "There weren't even any rumors," replied one user.

Happy New Year, happy anniversary, and enjoy the time with your new family!