'Voice' Finalist Josh Gallagher Lets the Reality of Parenthood Lead the Way on 'Father to Father' (Exclusive)

"Once we laid the blueprint for it, it kind of wrote itself to be honest," the country artist says of his new song

Shortly after his son Jaxon Daniel was born, Josh Gallagher began to feel the weight of the reality of fatherhood … and it hit The Voice finalist like a ton of bricks.

"Right after he was born, we were on the road every weekend, but then I came home and I was like, holy s---, we have a little baby," Gallagher, 32, recalls during an interview with PEOPLE with a laugh. "The realness really set in at that point."

Sure, Gallagher had found himself over the moon from the moment his wife Lindsey told him that they were going to have their first baby.

"During the whole pregnancy, it felt very real, especially when he started kicking and you could see him rolling around in there," recalls Gallagher, a country music storyteller at his core who has shared the stage with the likes of artists such as Randy Houser, Eric Paslay, Lee Ann Womack and Cole Swindell in recent years. "But when I held him in my arms for the first time…."

The singer/songwriter's voice starts to waver a bit.

"I'm going to start crying a bit if I'm not careful," he says quietly. "But yeah, it's the very best feeling. There is nothing like it."

But as any parent can attest, the euphoria that comes with new parenthood also eventually comes with its share of apprehension and nervousness at the mere thought that this tiny baby will soon grow up in a far too big of a world.

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And it was this realization that Gallagher took into the writing room on the day he wrote his heartfelt new single "Father to Father" alongside fellow songwriters Mark Addison Chandler, John Marlin, and Nate Kenyon.

"Jax had just turned 6 months old," remembers Gallagher of the song — premiering exclusively on PEOPLE — that not only touches on the reality of Gallagher becoming a father, but just how his dad, his grandfather and his God above are seemingly directing him along this life journey.

"Once we laid the blueprint for it, it kind of wrote itself to be honest," continues Gallagher, who made history on season 11 of NBC’s The Voice when he became the first country artist coach Adam Levine has ever led to the show’s finale. "We figured out what the song needed to be."

Gallagher recently was able to perform "Father to Father" in front of his wife and child during a writer's round in Nashville.

"[Jax] just sat there and watched me play every single song," recalls Gallagher of the moment with his now 16-month-old that The Voice fan favorite ended up sharing on Instagram. "That kid loves music. Every time I sing, he starts to try and sing with me."

And these are all moments that Gallagher says he’s trying to take in and appreciate the very best he can.

"Jax has grown up so fast," says Gallagher, who recently snagged writing credits on Lewis and Lee Brice's new single "Product Of."

"He's officially a toddler now. It's like, 'Stop growing up so fast, dude! Will you just stay little and tiny and cute forever please?' With every minute that passes, he gets older and we're actually starting to realize some little things nobody really prepares you for. It's kind of minuscule stuff, but it’s these small moments we don’t ever want to take for granted."

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Read the original article on People.