Joe Don Rooney and Tiffany Fallon Welcome Daughter Devon Olivia

10/01/2014 at 04:45 PM ET

Joe Don Rooney Tiffany Fallon Welcome Daughter
Larry Busacca/Wireimage

Joe Don Rooney‘s little rascals officially outnumber him.

The Rascal Flatts guitarist and his wife, Tiffany Fallon, welcomed their third child — a girl! — on Monday, Sept. 29, in Nashville, his rep confirms to PEOPLE exclusively.

Born at 7:01 p.m. and weighing in at 6 lbs., 11 oz., daughter Devon Olivia joins siblings Raquel Blue, 4, and Jagger Donovan, 6.

“We are so thrilled to finally become a party of five,” the proud new parents tell PEOPLE. “Jagger and Raquel are so happy to be her big brother and big sister.”

With Rooney and the band busy out on the road, Devon’s big debut came just a little late.

“Our schedule is so crazy,” Rooney joked to Country Weekly in August. “I have literally a window of time from Sept. 22 through Sept. 26 off, so we’re hoping [her birth] falls in that window. No pressure, Tiff!”

As of August, the couple hadn’t decided on a name for their daughter just yet — possibly because the musician was busy counting down the days until her arrival.

“I’m just excited to have my wife back, bless her heart. She doesn’t do [pregnancy] very well,” he explained. “She’s been really sick with this one. She’s starting to feel a little better, she’s just in that uncomfortable stage now.”

In March, Rooney, 38, confirmed his family was “blessed” to be growing — and looking forward to having the new addition join in on the fun.

“Jagger and Rocky are very excited too. They’re going to make a great ‘big brother-big sister duo’ as the Rooney circus continues,” he joked.

— Anya Leon

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FILED UNDER: Births , Country , Joe Don Rooney , News

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Showing 12 comments

Tracy on

Congrats!

paisley on

Congratulations! Such a blessing#

Janie on

Congrats to both! Love the name!

Van on

Congrats to the happy family!

Anonymous on

Another Rascal Flatts baby, yea! Congratulations to Joe Don and Tiffany!

Carolyn on

Congratulation! Glad she is healthy. Hope you feel better soon Tiffany! Love her name!

Jean on

Congratulations to this sweet couple! So many babies being borned !! Wish I could start over!!! I had a son and daugther….lost my daugther a couple years ago, there went part of me.We can’t go back, but now wish I’d had four children!!!

Jean on

Tiffany I meant to say you always looks so pretty and Joe Don I like the way you are styling your hair now. Best wishes for your beautiful family!!!

Anna on

Ooh another little Rascal. Love the name!

DaphneH on

Congrats! Beautiful name!

Ann C. on

“CONGRATS” to the family. “GIRLS RULE” . There has been many baby girls born in the last 30 days. WOW

Lauren Adilev on

Just hope Jagger is the boy! Devon??!