Madonna promises her biggest-ever concert in Rio at the Celebration Tour Finale.

Madonna sang a number of her greatest hits, such as "Like a Prayer," "Vogue," and "Express Yourself," at her last performance of her The Celebration Tour. On May 4, Madonna takes the stage at a free concert at Rio de Janeiro, Brazil's Copacabana beach. (AFP) It is believed that 1.6 million people saw Madonna perform. Anitta, a Brazilian singer, joined Madonna on stage during the performance.(AFP) At the conclusion of her The Celebration Tour, Madonna performed for an ecstatic audience of almost 1.5 million people. (AFP) "Rio, here we are, in the most beautiful place in the world, with the ocean, the mountains, Jesus," Madonna remarked to the audience during the performance. Enchanting! She was speaking of the statue of Christ the Redeemer.(AFP)