Chris Stapleton and Wife Morgane Welcome Their Fifth Child: 'The Most Perfect Mother's Day'

Chris Stapleton is a father of five!

The country singer-songwriter, 41, and his wife Morgane have welcomed their fifth child, she announced on Instagram Sunday.

“The most perfect Mother’s day… I wish all you Mama’s the happiest of days today!” she captioned her post.

Morgane did not reveal the name or sex of the baby but did share a sweet photo of the newborn’s arm in a mustard-and-white striped outfit.

The couple, who wed in 2007, are also parents to three sons (including twin boys they welcomed in April 2018) and one daughter, but have chosen not to publicly reveal their names.

Their latest arrival was welcomed with well wishes from several famous pals, including actor Josh Brolin, who wrote, “❤️Happy Mama’s Day!!!!🙏.”

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Just seven months after the spouses welcomed their twin sons, Stapleton announced that he and his wife were expecting their fifth child during a November concert at Madison Square Garden in New York City.

“Some of you may know that we have four children,” the musician said, according to a video published by The Blast. “We just had twins, about seven months ago. Now there’s four for us, but we’re gonna make it five!”

It wasn’t the first time Stapleton has announced his baby news during a concert. In 2017, the country singer shared that his wife was expecting twins during a performance in Dallas at Starplex Pavillion.

“She’s the mother of my two kids, and she’s about to be the mother of two more,” he said of Morgane, 36.

RELATED VIDEO: Chris Stapleton and Wife Morgane Open Up About Baby No. 5

Walking the red carpet together in February during the Grammy Awards in Los Angeles, the “Millionaire” singer and his wife posed for photos while the latter showed off her baby bump under a long billowing blue dress.

Morgane — who was pregnant at the Grammys for the second year in a row! — pulled the look together with sandals and a black clutch, wearing her blonde hair in loose waves. Stapleton kept it simple yet debonair in a black suit, black shoes and a cowboy hat.

Speaking exclusively to PEOPLE on the red carpet, the couple said they were due in the spring while Morgane admitted she’s taking bathroom breaks “every 30 minutes, if I’m hydrated. It’s gonna be a lot tonight.”

Two months before the Grammys (where he was nominated in three categories), Stapleton won male vocalist of the year at the CMAs and used his time onstage to thank his growing family.

“I’m real proud of this award. I want to thank my kids who put up with me being gone quite a bit and not always being as good of a dad as I would always like to be,” the “Broken Halos” singer said during an emotional acceptance speech. “I love you so much … you share me with all these people and I appreciate it.”

“I want to thank my wife for always being my rock and taking care of me and helping me find the right thing to be and the right thing to do,” he added of Morgane, whom he kissed on his way up to the stage.