And fans have taken it as a promise that the group will return after their hiatus, with the lines "This is not the end, this is not the end, we can make it, you know it, you know."
The inclusion of Zayn in the video is surprising as he recently claimed he tried to reach out to the group and they rejected him.
He told L'Uomo Vogue: ''The truth is I haven't spoken to any of the boys at all really, I spoke to Liam a bit and that's just the way it is.
"I did try to reach out to a couple of people and they didn't get back to me, but then publicly, when they were asked questions about it, said that they'd spoken to me and that we were friends
"But that's not the case, I tried to reach out and be their friend but they haven't even replied to any of my calls or texts.''
- Bang! Showbiz