Brian McKnight and Wife Leilani Welcome Baby Boy: 'We Are So In Love!'

Brian McKnight has added a baby boy to his family! The "Back At One" singer, 53, and wife Leilani have welcomed another baby, son Brian Kainoa Makoa

McKnight, the couple announced in a joint Instagram post Monday. "'For this child we have prayed and the Lord has granted us the desires of our hearts' 1 Samuel 1:27 God's

greatest gift, our son is here!!!" the pair wrote alongside a photo of McKnight and Leilani making a heart with their hands around the infant's hand. "🤍 Brian Kainoa Makoa

McKnight 🤍 We are so in love!!!! ♥️♥️♥️♥️♥️ #iloveourlife  #mylegacy #blessed #ohana #son #mrandmrsmcknight #knightandlei," they added. The couple is already parents to son

Jack and daughter Julia. McKnight is also father to sons Brian Jr. and Niko with ex-wife Julie McKnight — whom he was married to from 1990 to 2003 — and daughter Briana McKnight

from a previous relationship. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy

celebrity news to compelling human interest stories. RELATED: Brian McKnight Calls Wife Leilani His 'Hero' as They Reveal They're Expecting Rainbow Baby In November,

the couple revealed that they would be welcoming a baby boy. "So thankful for precious life and our growing OHANA!!!" the singer shared at the time. The couple's new

addition is a rainbow baby, an experience McKnight opened up about in a number of Instagram posts on Mother's Day, explaining how they'd experienced a pregnancy loss.