Band politics...

As someone who prefers to work alone, Zayn was the first to quit One Direction in 2015 after growing tired of politics behind the scenes in the band.

He said: “There was a lot of ... look I don't want to go into too much detail, but there was a lot of politics going on, so people were doing certain things, so people didn't want to sign contracts, so I knew something was happening.

"So I just got ahead of the curve.

"I was like, I'm just gonna get out of here, I think this is done. And I just seen it."

Revealing how the group's fame impacted their friendships, he added: "And then there was obviously underlying issues, like within our friendships too. We've been together every day for five years and we've got sick of each other for being completely honest. So we were close.”