Justin Moore Welcomes Son Thomas South

Justin Moore has his little boy!

The country singer-songwriter and his wife Kate are parents for a fourth time to their first son, Moore’s rep confirms exclusively to PEOPLE.

Baby boy Thomas South Moore was born Sunday, June 11, at 3:33 p.m. in Little Rock, Arkansas, measuring 20 inches long and weighing 7 lbs., 14 oz.

“Kate and I already felt like the most blessed people in the world with our three beautiful daughters, but we feel even more blessed to have a healthy baby boy now to add to our family,” Moore, 33, tells PEOPLE of the family’s newest member, sharing his son’s first photos exclusively. “God has given us another wonderful gift, in him, June 11th.”

The “Small Town USA” crooner shares the baby boy was named after Moore’s late grandfather, and that the family will call him South. “His sisters are already obsessed with him, as we are all of them,” he continues. “Thanks for all the well wishes and congratulations. Very much appreciated.”

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South’s built-in best friends for life are sisters Rebecca Klein, 3 next month, Kennedy Faye, 5½, and Ella Kole, 7.

Moore announced his fourth child on the way in January, sharing a concert photo to Facebook alongside a caption reading, “Kate and I would like to let all of you know that we will be adding to our family, once again. No more dogs, thankfully! Haha.”

He added, “To have the opportunity to become parents again, is such a blessing and one we are so thankful to God for. We pray for a healthy baby boy or girl. Our three daughters are super excited, as are we.”

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Moore and his then-pregnant wife attended the 2017 Academy of Country Music Awards in Las Vegas in April, with the “Somebody Else Will” singer joking about his opinion on not finding out the sex of the couple’s baby on the way.

“I do want to find out. It’s a sore subject,” Moore told PEOPLE at the time, adding on a more serious note, “I love the opportunity that we have to play music for a living, in particular country music, but I have more fun being a dad and husband. And I’m fortunate to get to do it again.”

• With reporting by SARAH MICHAUD