One Direction's US leg of their Taylor Swift.
A source told the tabloid: "Harry is not joking, he's taking the situation very seriously. He's mentioned high-security cars like the ones used by military top brass, plus a convoy.
"He also feels there are Taylor Swift followers out there who may hold a grudge against him following their break-up."
They added: "He may have looked casual and jokey lying on the floor but behind the scenes he was freaked out."
The news comes after Hazza's 1D bandmate Louis Tomlinson reportedly [uuid=77c31cd1-3aaa-475c-a638-736507c4d065]installed a panic roo[/uuid]m in his Hertfordshire home after girlfriend Eleanor Calder received death threats from jealous fans.
In other related news, the lads are also thought to have hired a luxury private jet, worth £3million, for their tour.
According to The Mirror, the aircraft has been branded Air Force One Direction, with The X Factor group using it for the first time for tonight's gig in Dublin (March 5).
However, their support act, 5 Seconds of Summer, were left to get the ferry over to Ireland, with the band tweeting yesterday: “Going to Ireland on a boat. We’re on the ferry to Dublin! PUMPED!”

[uuid=2108d822-bbeb-4638-ba28-45a2d8ec2850]SEE 101 OF ONE DIRECTION’S MOST FAMOUS LOOKS HERE![/uuid]

[uuid=1a03b39d-f9c5-4cbd-8fe4-dcd493489049]CHECK OUT PICS OF ONE DIRECTION IN MTV'S GALLERY HERE![/uuid]