"Jennifer has always wanted to participate in the World Cup opening ceremonies," the rep says. "We have been trying to work out scheduling and logistics. Any statements to the contrary were premature. Jennifer would not want to disappoint her fans or fans of futbol. She will be there."JLo, Pitbull and Leitte will perform their song "We Are One" for the finale of the opening ceremony, which artistic director Daphne Cornez says "is a tribute to Brazil and its treasures: nature, people, football." Many think it's the worst World Cup song of all time. But get dem coins JLo!