Tiffany Fallon and her husband Rascal Flatts’ guitarist Joe Don Rooney have welcomed their third child, a baby girl.

Rooney’s rep confirmed to Us Weekly that their newest bundle of joy had arrived on Monday, September 29 at 7:01 p.m. in Nashville, Tennessee. Devon Olivia weighed in at six pounds eleven ounces.

“We are so thrilled to finally become a party of five,” the couple told People. “Jagger and Raquel are so happy to be her big brother and big sister.”

The couple married in 2006 and already had two children together, son Jagger Donovan, six, and daughter Raquel Blue, four.

“We are so thrilled and feel so blessed to bring another little angel into our world,” Rooney said when the couple announced that they were expecting a third baby.

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

Welcome to the world, little rascal! Rascal Flatts' Joe Don Rooney and his wife have a new baby girl: http://t.co/P3JWizgZPE

— Us Weekly (@usweekly) October 2, 2014

On Sunday, Joe Don posted a picture of him, Jagger and Raquel on his personal Instagram account. “All babied up watching the #rydercup – nothing better! #sundayafternoon,” he captioned one of the last photos taken of them before their little sister arrived.

The couple revealed that they didn’t have a name for their newest edition until August because they were too busy counting down to the day of her arrival. Rooney said that he was just happy to have his wife back because she doesn’t do pregnancy well.

“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.”