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Major security operation for Jedward's walkabout

Major security precautions will be put in place for Jedward's appearance at HMV in Dundrum on Friday.

The spiky-haired duo will be on a major charm offensive, given they are still gunning for international chart success.

Although they scored a number one hit here with their debut single, Under Pressure (Ice Ice Baby), they were held off the top spot in Britain by Owl City's Fireflies.

Adam Young, the US star behind Owl City who has sold three million copies of his hit single, admits that he had never heard of Jedward.

"I grew up in a family who didn't watch TV so I don't have one now. I think it's cool to be mentioned in the same sentence as stars like Jedward, as the amount of success that I've had for what I'm doing is so unexpected. Needless to say, I'm pretty thrilled," he said.

But John and Edward Grimes (18) have still not forsaken their chart dream and will be at the HMV store in Dundrum this weekend, with the venue no doubt bracing itself for some chaotic scenes, given their huge following over here.

"There's going to have to be some major security in place -- these guys are huge right now and everyone wants to meet them," said an insider.

"Everywhere they go, they have this massive entourage of fans chanting their names and holding up T-shirts with their faces on them so there's huge excitement surrounding their appearance in Dundrum."

However, they may be in for a second round of disappointment when it comes to achieving their dream goal of a number one hit in Britain.

They will be seriously hampered by the release of the Haiti charity single, Everybody Hurts, which has already sold an estimated 100,000 copies in stores and online. It is believed that the song could well become the biggest seller of the past 10 years.

The tune features 21 star acts, including Kylie, Leona Lewis, Take That, Mariah Carey and Rod Stewart, with proceeds going towards helping those devastated by the recent earthquake in Haiti.