Rock in Rio is a series of music festivals held in Brazil and later in Portugal and Spain. There may be additional festivals in either Mexico, Argentina or Colombia.
Three incarnations of the festival were in Rio de Janeiro, in 1985, 1991 and 2001, four in Lisbon, in 2004, 2006, 2008 and 2010, and two in Madrid in 2008 and 2010. The shows were organized by Brazilian entrepreneur Roberto Medina. In 2011, Rock in Rio will take place in its original home, Rio de Janeiro.
Rock in Rio has been the largest music festival in the world, with 1.5 million people in the first edition, 700,000 in the second, about 1.2 million in the third, and about 350,000 people in each of the 3 Lisbon editions.