Peru has called out riot police to control hundreds of young girls swarming the hotel where the Jonas Brothers are staying. Thousands of other fans have lined up for the group's world tour premiere.
The boy band is performing two concerts in Lima because a Mexico concert was postponed due to the swine flu epidemic.
The first Lima concert sold out in hours and 60,000 people are expected for each show on Monday and Tuesday.
Police blocked off traffic on Sunday as more than 1,000 fans met Nick, Joe and Kevin Jonas at the oceanfront Marriot Hotel. Dozens of girls slept in a park outside the hotel to be close to their idols.
"What a great way to start off our new world tour," the group posted on its Web site on Monday.
What the El!?! Editorial:
I just don't remember this sort of mania surrounding New Kids On The Block or N'Sync.
I don't get it, but I'm not their audience either!