Thomas Rhett

Congrats to the proud parents and their growing girl gang!

Rhett's CMAs performance was a heartfelt trip down memory lane.

Lyrically, Rhett co-wrote a nostalgic summer love song that stings just like it should.

Though life has peaks and valleys, Thomas Rhett's dedication and love for wife Lauren Akins never wavers.

The newborn will join older sisters Willa Gray, Ada James and Lennon Love when she arrives in November.

Thomas Rhett's surprise new song gets the party started, just in time for the singer's return to live music.

Including Thomas Rhett, Eric Church, Lainey Wilson and more.

Rhett's three daughters have since come around to the idea of a baby sister -- but maybe they'll still get a baby brother one day.

"I had that idea in my phone for so long and had no idea how to write it ..."

Way to go, Willa Gray!