Rock in Rio takes place in Rio de Janeiro between 13 to 22 September 2013.
Hard Rock and Heavy Metal Bands in Rock In Rio 5
14/09 - Thirty Seconds To Mars
19/09 - Metallica / Sebastian Bach
20/09 - Bon Jovi / Nickelback
22/09 - Iron Maiden / Slayer / Avenged Sevenfold
References: http://rockinrio.com/rio/