Artists perform during the opening ceremony of the 2011 Copa America soccer tournament at Estadio Unico in La Plata, Argentina, Friday July 1, 2011. (AP Photo/Pedro Fosco)
Artists perform during the opening ceremony of the 2011 Copa America soccer tournament at Estadio Unico in La Plata, Argentina, Friday July 1, 2011. (AP Photo/Pedro Fosco)