One Direction has 'really tight bond'

One Direction constantly relies on one another to get through the shock and stresses of their fame.

The band consists of Zayn Malik, Liam Payne, Louis Tomlinson, Niall Horan and Harry Styles.

The boys have an incredibly close relationship according Morgan Spurlock who directed their movie This Is Us.

"They're very real. What you see in the movie is how much each one of them relies on the other four guys.

They have this really tight bond," he told Teen Vogue. "Nobody else in the world knows what they're going through except those other four guys. That relationship for them, I think, is invaluable.

"Part of the reason why they've been able to stay so grounded is because they have the others there to kind of keep them in check constantly."

Morgan insists that despite having millions of fans and people around them on a day-to-day basis, they often get lonely and scared.

Apparently the group is not keen on the many luxurious accommodations they get to stay in and often switch it for a cramped tour bus bunk.

"We were staying in this really crazy, incredibly ornate hotel in the middle of like Nottingham and Zayn had this huge room that had two bedrooms in it," Morgan recalled. "He said, 'I can't sleep in here, man. It's just too weird. It's too creepy for me. I'd rather stay on the bus.' So, he went back and slept on the bus.

"There was even a snowstorm! But that's where he stays. And he does that all the time on the road. It's amazing. And it's not just him!

"When they're on the road, they don't have friends and family around. They have each other. So after a gig, they'd rather have the comfort of that family around."