Luke Combs Reveals He Missed the Birth of Son Beau: 'One of the Best and One of The Worst Days in My Life'

Luke Combs is opening up about the challenges he faced on the day his son Beau Lee was born.

The country singer, 32, recently sat down with Zane Lowe on Apple Music 1 to talk about his new album Fathers & Sons, where he revealed for the first time that he missed the birth of his second son, now 10 months.

"I'll never forget the craziest day, probably, in my life, close to it. One of the best and one of the worst days in my life at the same time was, interestingly enough, and it's so hard to wrap my mind around it," he said before describing the day in full detail.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

"So it's August 16th. I wake up in the morning, I'm in Sydney, Australia, in a hotel room, and we're on tour in Australia. I probably woke up at around 8:00 a.m. or something like that, Australia time, and I had a text from my wife and it said, 'I'm so sorry, I really tried to not have the baby while you're gone,' "the "Beautiful Crazy" singer told Lowe, adding "And God, dude, it sucked."

He cried as he continued to recall the day. "It sucked because he was born on August 15th in the States. I got to see him be born, which was awesome," he said, seemingly alluding to the fact that he was on FaceTime with his wife. "He wasn't born yet, but my wife went, she texted me on the way to the hospital, and he was two and a half weeks early and I was supposed to be home and I wasn't.

"That was real hard to do and I haven't really told anybody that," he admits, adding, "I didn't cover that too much in this album because it's really hard for me to deal with."

Combs added that during this challenging time, he and his wife Nicole both had "a really great support system" full of their closest friends and family.

"God, it was a hard day, but I was so lucky that a lot of my closest friends now work for me. And so I had a really great support system," he said, explaining that his two best friends work as his personal assistant and guitar tech, and are both dads as well. "I was able to be with them through that whole thing."

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

While he was on tour, Nicole's mother and sister were fortunately able to fill in. "Luckily, my mother-in-law came up for the month while I was gone, because, obviously, we have a 1-year-old and my wife is essentially nine months pregnant at the time, so thank goodness she was there."

He continued, "My sister-in-law lives in Nashville as well. So my wife had a really great support system with her for that experience, which I'm very thankful for. That made it a lot easier. I had people with me, everything went great. No hiccups in the process or anything."

When the Combs looked back on the experience, he said, "It's a defining moment in my life for sure. It sums up, in a lot of ways, some of the bad parts of the music business — the leaving and your schedule's crazy and you're traveling all over the place. It's not like I can drop everything I'm doing and fly 18 hours home."

In addition to son Beau, the musician and wife Nicole, 31, also share son Tex, 2.