Credit: @DanneelHarris Photo: Danneel Harris and Supernatural's Jensen Ackles

Welcome to our world, Miss JJ!

Supernatural star Jensen Ackles and One Tree Hill alum Danneel Harris welcomed their first child on May 30.

Danneel tweeted the news on June 6: "We are happy to announce the birth of our precious baby girl, Justice Jay 'JJ' Ackles. She was born happy and healthy on May 30th."

So she has amazing genes and Justice is on her side. Total superhero already.

Jensen and Danneel got married on May 15, 2010, so May is a very special month for this family. We last saw the couple on the red carpet on May 18 at the UCLA Spring Sing event, when Danneel was rocking a pretty big bump. And now Baby Ackles is here.

Many blessings to the growing family!

Sources: @DanneelHarris, Us Weekly

Credit: Celebified Photo: The Client List Star Jennifer Love Hewitt is Engaged and Pregnant with her First Child with Costar Brian Hallisay