SEPULTURA members Derrick Green (vocals) and Andreas Kisser (guitar) joined KORN on stage last night (Saturday, October 19) at the Monsters Of Rock festival in São Paulo, Brazil to perform SEPULTURA's classic song "Roots Blooody Roots". Professionally filmed video footage of their appearance can be seen below (Note: Skip to around 47-minute mark.) Green wrote on Facebook afterwards: "What a cool surprise tonight rocking out 'Roots Bloody Roots' with KORN!! Too much fun!!"KORN singer Jonathan Davis was featured as a guest on the track "Lookaway" — along with Mike Patton of FAITH NO MORE — on SEPULTURA's 1996 album "Roots". Speaking to ARTISTdirect, former SEPULTURA frontman Max Cavalera stated about the recording sessions for "Lookaway": "Mike Patton was on the song, and Jonathan's a huge FAITH NO MORE fan. He was actually freaking out that Patton was there. He was really nervous, which was actually kind of funny. He kept chewing on his hair the whole time he was in the studio. [Producer] Ross Robinson teased him at one point and told him to calm down. [laughs]" He continued: "'Lookaway' came out of a jam. It's a really heavy riff. Patton started singing this Indian chant, and it gave me goosebumps in the studio when he did that. It was so intense. He showed up in the studio with a Samsonite briefcase. I was like, 'Mike, what's up with the briefcase?' He said, 'It's what I need to record.' It had an echo pedal inside for his voice and a bottle of wine. He opened the wine and we drank it. At one point, the three of us were on the floor of the studio going crazy and making weird noises and sounds! Jonathan took it to another level. He's singing about people with a fear of pussy, which is a crazy concept. It came out as a really cool, obscure song on 'Roots'."