Former MEGADETH guitarist Marty Friedman joined Taiwanese metallers CHTHONIC on stage earlier today (Sunday, July 29) at the Fuji Rock Festival at Naeba Ski Resort in Yuzawa-machi, Niigata, Japan.Commented the band: "It was a unbelievably great experience in Fuji Rock! Heaviest band in Fuji Rock ever! CHTHONIC with special guests, Marty Friedman, Musashi, and Shin Ichikawa." Added Friedman: "Today at Fuji Rock, yes, that is the ultimate K-1 fighter Musashi in there, he joined the band on a song in Taiwanese!! Incredible...Then I played on their final song, 'Quell The Souls In Sing Ling Temple', which is one of my favorite songs of theirs, totally dramatic theme, I loved playing it!" A photo of Friedman on stage with CHTHONIC can be seen below. Also available is professionally filmed video footage of the CHTHONIC performance. CHTHONIC's sixth full-length effort, "Takasago Army", was released in North America last September via Spinefarm Records. Produced by Rickard Bengtsson (ARCH ENEMY, NEMESIS) at Sweet Spot Studios in Halmstad, Sweden, this 10-track outing completes a trilogy of CHTHONIC releases, telling a story that binds together the band's "Seediq Bale" and "Mirror Of Retribution" albums, released in 2007 and 2009, respectively. Friedman will embark on the "Guitar Universe 2012" European tour in October. Support on the trek will come from Israel's Yossi Sassi (ORPHANED LAND) and France's Stéphan Forté (ADAGIO). As previously reported, three recent albums by Marty Friedman — whose groundbreaking work with MEGADETH and CACOPHONY continues to receive international acclaim to this day — will be released in North America by Prosthetic Records on August 14.