AFP via Getty Images Madonna put on a free concert on Copacabana beach Saturday night, turning Rio de Janeiro’s vast stretch of sand into an enormous dance floor ... joined on stage by Brazilian ...

exclaimed Madonna ... circular stage to open the show, soon making her way closer to the crowd via an intricately designed series of runways which ran the length of the massive arena floor ...

RIO DE JANEIRO — Madonna put on a free concert on Copacabana beach Saturday night, turning Rio de Janeiro’s vast stretch of sand into an enormous dance floor ... joined on stage by Brazilian ...

Madonna put on a free concert on Copacabana beach Saturday night, turning Rio de Janeiro's vast stretch of sand into an enormous dance floor teeming ... she was joined on stage by Brazilian ...