FOTO: OTVORENO SVJETSKO PRVENSTVO Jennifer Lopez oduševila Corinthians Arenu

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / FRANCOIS XAVIER MARIT

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / PEDRO UGARTE

US singer Jennifer Lopez (R), US rapper Pitbull (L-back) and Brazilian pop singer (L-front) perform during the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / ODD ANDERSEN

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / ODD ANDERSEN

Brazilian pop singer Claudia Leitte (C) leads performers as they take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / FRANCOIS-XAVIER MARIT

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / FRANCOIS-XAVIER MARIT

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / VANDERLEI ALMEIDA

(From L-R) US rapper Pitbull, Brazilian singer Claudia Leitte and US singer Jennifer Lopez perform during the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / DIMITAR DILKOFF

US singer Jennifer Lopez and US rapper Pitbull wave to fans after performing during the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / VANDERLEI ALMEIDA

Brazilian pop singer Claudia Leitte performs during the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / DIMITAR DILKOFF

US rapper Pitbull (R) Brazilian pop singer Claudia Leitte (L) and US singer Jennifer Lopez (C) gesture as they part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / PEDRO UGARTE

Brazilian pop singer Claudia Leitte performs during the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / DIMITAR DILKOFF

Performers are led by Brazilian pop singer Claudia Leitte (L) US singer Jennifer Lopez (C) and US rapper Pitbull (R) as they take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / FRANCOIS XAVIER MARIT

Performers are led by US rapper Pitbull (C) Brazilian pop singer Claudia Leitte (R) and US singer Jennifer Lopez (L) as they take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / PEDRO UGARTE

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / FRANCOIS-XAVIER MARIT

US singer Jennifer Lopez (R) and Brazilian pop singer Claudia Leitte gesture as they take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014, prior to the opening Group A football match between Brazil and Croatia. AFP PHOTO / PEDRO UGARTE

People cheer berfore the Group A football match between Brazil and Croatia at the Corinthians Arena in Sao Paulo during the 2014 FIFA World Cup on June 12, 2014. AFP PHOTO / ADRIAN DENNIS

XXX (L) and XXX vie for the ball during a Group A football match between Brazil and Croatia at the Corinthians Arena in Sao Paulo during the 2014 FIFA World Cup on June 12, 2014. AFP PHOTO / FABRICE COFFRINI

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / DIMITAR DILKOFF

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / DIMITAR DILKOFF

Performers take part in the opening ceremony of the 2014 FIFA World Cup at the Corinthians Arena in Sao Paulo on June 12, 2014. AFP PHOTO / FABRICE COFFRINI