Is it just us, or has One Direction matured a LOT over the past few years??
That's probably because they've gone from adorable boys to some fine ass men right before our very eyes, which explains why they're already starting to feel nostalgic for their teen years!
In their newest song, 18, the boys look back on their younger years and the ever elusive loves that got away, and the whole thing is just bursting with emotions!
It probably doesn't hurt that their good friend Ed Sheeran wrote it!
Between the touching tone of the lyrics and the stripped down strings, this song not only shows their growth as men but their growth as musicians as well!
Ch-ch-check out the song (above) and tell us what you think!