Alec Baldwin, wife Hilaria 'overjoyed' with baby Carmen

Alec Baldwin and wife Hilaria are getting to know a new family member.

The couple announced the arrival of their first child together, daughter Carmen, on Friday.

"We are overjoyed to announce the birth of our daughter Carmen Gabriela," Hilaria tweeted. "She is absolutely perfect."

Big sister Ireland, Alec's daughter with his ex Kim Basinger, was also overjoyed, and shared some advice to her new sibling on Tumblr.

"(T)here are a ton of people who care about you. I’m not sure where exactly to begin," Ireland told her baby sis.

"There are so many things I want to tell you, though it is best that you discover those truths on your own. There are countless lessons that I want to teach you, but I have faith that you will learn a majority of them on your own journey and they will help you grow. Though, I do want to take this opportunity to share the little knowledge I do have on a few things. You will eventually make your own decisions, but hopefully you will listen to and use the knowledge I have gained from my past experiences and from the results of my many mistakes."

Rule No. 1? "Remember that your parents will always love you," Ireland wrote.

Indeed, new mom Hilaria is overwhelmed with the emotion.

"Since giving birth, the word 'love' has taken on a whole new meaning," she tweeted Monday. "Its depth, and intensity are overwhelming in the most welcome way."