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.
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