The musician told Reuters that he wanted the new LP to reflect the "melancholy" that the band has felt over the last year.
"There's only a couple up-tempo numbers," he said. "I think that has a lot to do with not just where we are as people, but the fact that we recorded in New York."
The star further explained: "We were pretty melancholy and a little homesick. So every time we picked up an instrument it would be, at times, a little slower. A little drawn back."
Followill added that Kings Of Leon's music has progressed beyond the garage rock sound that they exhibited on 2008's Only By Night.
"What we are doing now is a lot more complicated than what we were doing back then," he said. "A lot of fans love what we did earlier on and I think we would all be happier to do that again and it would be easier for us to do that, but right now we're kind of focused on this thing that we're doing.
"Hopefully we'll be around long enough to venture back."