As the Brazil team has come spectacularly undone in the World Cup, the pain for the host country has been compounded by the prospect that its hated rival, Argentina, could still lift the championship trophy on Sunday in Rio de Janeiro’s fabled Estádio do Maracanã, after Argentina won a tense semifinal against the Netherlands in a penalty shootout on Wednesday afternoon.

The tens of thousands of Argentine fans who have invaded Brazil to cheer for their team, and taunt their hosts, brought with them a song — set to the tune of “Bad Moon Rising” by Creedence Clearwater Revival — that predicts not just triumph for Argentina, but deep humiliation for Brazil. And the players themselves have joined the choir.