LAMB OF GOD frontman Randy Blythe joined HATEBREED on stage this past Wednesday at the Sonic Metal Fest at Teatro Caupolican in Santiago, Chile to perform the song "Doomsayer". Fan-filmed video footage of his appearance can be seen below.HATEBREED is in the middle of a seven-date tour of South America and Mexico with LAMB OF GOD and LACUNA COIL (on select shows). Writing on Twitter, LAMB OF GOD guitarist Mark Morton said, "I wish every tour could be with HATEBREED. I laugh constantly when I'm around those dudes." HATEBREED made pre-production recordings of some of its new material before embarking on the current tour. In a recent interview with Australia's Loud magazine, HATEBREED frontman Jamey Jasta stated about where he sees the band's next CD going musically, "Well, there probably won't be any melody whatsoever. (laughs) It'll be fast, heavy, I would say very reminiscent of the last record's faster, heavier songs like 'Merciless Tide' and 'Hands Of A Dying Man'." On the topic of a tentative release date for the next HATEBREED album, Jamey said, "I don't know. We were talking about that the other day and we were thinking about whether we should put something out in October, or should we try to maybe just wait until next January and tour more on the 'Perseverance' ten-year anniversary tour. Because originally we thought about doing some dates and just doing the whole 'Perseverance' album. But then we scrapped that idea and decided we were going to tour all of Europe and all of the festivals in the summer, and then promoters asked us to come to other places and we're going to do some more touring. So I don't know, I'm not sure yet." The self-titled album from HATEBREED sold 15,000 copies in the United States in its first week of release to land at position No. 37 on The Billboard 200 chart.