Speaking to the Daily Mail Weekend magazine, the teenage fivesome told how fans utilise social networking sites to help spread the word where they are.

Reflecting on a recent appearance in Milan where 3,000 fans turned up, Louis Tomlinson teased fellow band member Niall Horan.

“You get a bit scared sometimes Niall, don't you?' says Louis.

“It freaks me out.” Niall agreed.

“The fans are very hands on - hammering on the car, grabbing our bums when we get out.”

The physical effects of their popularity aren’t just felt by the boys either – meeting their young idols can really take it out of their fans. Zayn Malik recounted how a girl in Ireland keeled over in front of him. just because he’d mouthed hello through a window.

“She just passed out, flat on the floor,” he said.

And the families of One Direction bear the brunt of hordes of over-zealous fans tracking every movement of the former X Factor act, too.

“If people know you're home, they'll turn up,” said Liam Payne.

“Girls even appear when I'm not there. I get texts from my mum asking, ‘How many times can I tell them that you're not here?’”

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