Lady Antebellum's Hillary Scott is a mother of three girls, with her two youngest — infant twins Betsy and Emory — capturing a lot of the spotlight these days. However, there's always a special place in any mom's heart for her firstborn, which Scott proved Sunday (July 22) with a beautiful "Happy Birthday" post to her oldest daughter, Eisele.

Scott commemorated her eldest's fifth birthday with a richly poignant photo of the two of them captured from behind, which she then captioned with an equally deep series of thoughts.

"5 years ago this bright light entered our world," Scott writes. "She was right on time. Our Heavenly Father’s time! The purpose and call on her life is an endless number of prayers and praises that I am equal parts already watching/waiting expectantly to unfold.

"Eisele, thank you for changing our world and keeping us on our toes with big questions, laughter, and a deep-to the marrow kind of LOVE," she says.

While Scott and husband Chris Tyrrell have, naturally, been sharing lots of photos of their twins (who were born in January, and growing rapidly!), Eisele is never far from the camera herself. She's clearly a doting big sister, lavishing affection on her little sisters in every shot.

Scott is no doubt feeling extra sentimental regarding her daughter's birthday, as she's currently out on the road with Lady Antebellum. However, she is secure knowing that the girls are in the safest hands possible — namely, Dad's. Tyrrell, who served as Lady A's drummer on tour for years, made the decision with his wife that he'd be taking a break from the road to focus on being a full-time dad.

The couple say they "feel at complete peace" with their choice, calling it "one of the easiest decisions we’ve ever made."

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