This years has been very excited and expensive coz many international concerts have been happening  in Brazil. See someones:

A-ha, Akon, Beyoncé, Black Eyed Peas, Coldplay, Cranberries, Metallica, Paul McCartney, Smashing Pumpkins, Scissor Sisters, Tokio Hotel

In 2011:

Amy Winehouse, Iron Maiden, Ozzy Osbourne, Shakyra, U2*