"That song came from the heart. When we were writing it, it didn't have a title and I said, 'You know what? I grew up without a dad, and I just want to be the best one I can be,' and that's just the way we wrote the song," he shared of the track he released just after Kingsley was born. "That's one of my favorite songs I've ever been a part of."
In the song, Brown -- who shares Kingsley with wife Katelyn -- promises to do right by his daughter. As he told ET on Sunday, he can't wait to be there for each and every milestone.
"It's been amazing just being able to be a father and I just can't wait until she can actually walk, but I don't want to push it too far and too fast," he said.