Singer pulled out of the ceremony performance . The World Cup song has been a tradition since the 1966 World Cup in England , when a song dedicated to the tournament mascot , a lion named `` World Cup Willie , '' was released . She recorded ` ` We are One ( Ola Ola ) '' with Madonna and Claudia G . No reason was given for her absence .
Singer pulled out of the ceremony performance . She recorded ` ` We are One ( Ola Ola ) '' with Madonna and Claudia G . No reason was given for her absence .