The pop star's Wednesday-night opening concert at River Plate Stadium was delayed because mechanical problems delayed the plane transporting some of her wardrobe and sound equipment, said Maria Florencia Puppo of the local production company time 4 Fun.
Television stations showed hundreds of fans abandoning lines for the concert, which was delayed until Friday. The opening concert will now take place on Thursday.
Madonna, who played legendary Argentine first lady Eva Peron in the 1996 screen musical "Evita," kicked off the Latin American leg of a world tour last week in Mexico City.






After Britney's performance, which pop star would you like to see make a guest appearance on "How I Met Your Mother"?
Jessica Simpson
Madonna
Mariah Carey
Beyonce
Lindsay Lohan