But luckily, having penned the track back when he was a mere whippersnapper of a 17-year old, Ed Sheeran has all the inside info on what we've got to look forward to. HURRAH!
From what he's had to say, our assumption that the track would be an in depth description of 1D's own Little Things may have been a little off base, but it still sounds pretty good.
Dropping in on Capital FM's James Barr, Ed explained how the track came into being, saying: "The great thing about it is I wrote that song with a girl called Fiona Bevan when I was 17 and we lost the song.
"I've kept in touch with Fiona, we've done gigs and stuff and about two months ago she sent me the tune and was like 'oh, do you remember this?'.
"I was like 'Yeh, I do remember that', and I was in the studio with the One Direction boys at the time and I was playing it and they were like 'we really like that'."
"It was one of five songs that I gave to them which made the album. There's another one on there as well," he added.
"I think they just wanted to try something different. I think they did the same formula with the last single – it sounded like a One Direction song – and now I think they want to switch it up a bit."
"It's got one of my favourite lines that I've ever written in a song," he continued.
"Harry says, 'I know you never like the sound of your voice on tape and you never like to know how much you weigh and you still have to squeeze into your jeans but you're perfect to me'."
Then he actually SANG a bit of it. Check it out..
JESUS ED, what are you trying to do to us?
Wave goodbye to your ovaries gal pals.