X Factor stars John and Edward were booed by members of the audience at a Backstreet Boys gig in London, according to reports.

Fans at the O2 Arena are said to have started jeering after spotting the 18-year-old twins in the crowd on Tuesday.

It is thought that members from the Bin The Twins campaign, which has been set up to get the brothers booted off the talent show, were behind the chants.

"Everyone started whispering, 'It's them',” a source told the Sun newspaper.

“Then a loud boo went up and the poor lads looked really miffed. Still, I suppose they're used to it by now."

John and Edward – dubbed Jedward by their fans – have divided public opinion.

Many X Factor followers have praised the pair's dance routines while others have raised questons over whether they can sing.