Maddie Marlow and Tae Dye of Maddie & Tae are 20 and 19, respectively, and though they're young, they had to grow up early -- and fast -- when they moved to Nashville to pursue their dreams. They recount the hard-but-good lessons of getting older and more independent in their new tune "Downside of Growing Up."

Maddie & Tae played the song on Tuesday (July 28) in Fort Myers, Fla., during an acoustic show. In the video above, Marlow introduces the mellow, acoustic song, saying, "Tae and I both moved up to Nashville at 17. It was about 14 hours away from home, so we had to grow up really fast. I'm sure all of us, on our journey, went through something like that at some point."

From broken air conditioners to surprise apartment floodings and everything in between, the talented singers had to learn to make do on their own.

"Rent was due, and I was like, 'Oh, crap.' And that's actually what inspired the song, knowing that the growing pains and everything we have to go through are okay," Marlow continues. "It's all good. We don't have to have it figured all out. That's something I really had to learn personally."

Marlow claims "Downside of Growing Up" as her personal favorite on the duo's full-length debut album, Start Here, and it's easy to see why it tops her list: The stripped-down song is similar in feel to Taylor Swift's "Never Grow Up" and the Band Perry's "If I Die Young," and sure, the subject matter isn't exactly the same, but all three songs are introspective and look at life from a young person's point of view while being easy on the ears.

Start Here is scheduled to drop on Aug. 28. Its original due date was June 2, but they pushed the release back to ensure every aspect, from the artwork to the hooks, was perfect.

The duo is currently out with Dierks Bentley on his 2015 Sounds of Summer Tour. They'll head out on their own headlining trek on Oct. 7.

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