Mary Ouellette, shewillshootyou.com Metallica may not be releasing  new music until 2014 , but that doesn’t mean you won’t still hear them next year. In fact, the band has just announced a headlining appearance at the 2013 Rock in Rio festival in Rio de Janeiro, Brazil. Just to make sure their fans have enough advance notice, the group is giving their faithful followers a full 11-month head start on planning for the event. This will be Metallica’s sixth time playing the festival, and they’re set to perform on Sept. 19. Pre-sale tickets will be available Oct. 23 for those who have Rock in Rio membership cards, which are exclusively for Brazilian residents. Further information can be found here . For those outside of Brazil, there will be an international ticket sale beginning in April 2013. Metallica will have further details on that sale posted on their website once the info becomes available. In addition to Metallica, Bruce Springsteen & the E Street Band and Iron Maiden have been named as headliners for next year’s event. For further Rock in Rio information, visit the festival’s website . At present, the only other shows on Metallica’s schedule beside Rock in Rio is their appearances at Australia’s Soundwave Festival early next year and at New Orleans’ Voodoo Music Festival  on Oct. 27 of this year. The band recently stepped in to headline Voodoo when Green Day bowed out as frontman Billie Joe Armstrong continues rehab for substance abuse. [button href=”http://loudwire.com/kirk-hammett-excited-for-metallica-headlining-set-at-voodoo-music-festival/” title=”Next: Kirk Hammett Discusses Metallica’s Voodoo Fest Appearance” align=”center”]