The full post from SOAD’s website is as follows:
We’re excited to announce that System Of A Down will be co-headlining Rock In Rio with Guns n’ Roses, on Sunday October 2, 2011.
More information and ticket link below.
October 2, 2011: Rock In Rio @ City Of Rock, Brazil (on-sale Saturday May 7, at 00:01 BRT)
South America, we look forward to seeing all of you soon!
In addition to performances from SOAD and GnR, Rock in Rio will also see shows from the likes of Red Hot Chili Peppers, Coheed and Cambria, Sepultura, Katy Perry and Coldplay.