5,000 adoring fans packed the Palacios de los Deportes arena to see the Jonas Brother's perform live for the second time here in Santo Domingo. Unfortunately failed air conditioning resulted in unbearable heat & many of the youngsters had to be taken away by ambulance after fainting. The concert seemed doomed after audio problems became evident and the Jonas Brother's had to end their performance early when the back up power supply for the sound was reportedly damaged.