21. A woman slides down a zip-line at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



22. A clown amuses the public at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



23. Fans attend a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



24. A fan reacts during a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



25. Fans attend a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



26. Fans react during a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



27. Fans react during a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



28. A woman slides down a zip-line at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



29. Lenny Kravitz performs at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



30. Lenny Kravitz performs at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



31. Shakira performs at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



32. Shakira performs at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.



33. Mexican rock group Mana lead singer Fher Olvera performs at the Rock in Rio Music Festival in Rio de Janeiro October 1, 2011.



34. Fans reacts during the Rock in Rio Music Festival in Rio de Janeiro October 1, 2011.



35. Singer Adam Levine performs with his band Maroon 5 at the Rock in Rio Music Festival in Rio de Janeiro October 1, 2011.



36. Coldplay lead vocalist Chris Martin performs at the Rock in Rio Music Festival in Rio de Janeiro October 1, 2011.



37. Fans react during a concert at the Rock in Rio Music Festival in Rio de Janeiro October 2, 2011.



38. Shavo Odadjian, of the band System of a Down, performs at the Rock in Rio Music Festival in Rio de Janeiro October 2, 2011.



39. Axl Rose of Guns N' Roses performs at the Rock in Rio Music Festival in Rio de Janeiro October 2, 2011.



40. Fans react during a concert at the Rock in Rio Music Festival in Rio de Janeiro September 30, 2011.