METAL ALLEGIANCE — with its four core members: David Ellefson (MEGADETH), Alex Skolnick (TESTAMENT), Mike Portnoy (THE WINERY DOGS, ex-DREAM THEATER) and Mark Menghi — began as a celebration of heavy metal, powered by the almost tribal bond shared between the extreme music community's most revered trailblazers, armed with a list of contributors onstage (and off) that read like a Wikipedia entry on the genre itself. The band will release its sophomore album, "Volume II - Power Drunk Majesty", on September 7 via Nuclear Blast Entertainment. The thrash-worshiping disc merges old-school legends with the modern metallers of the scene to produce groove-driven, adrenaline-soaked anthems while tackling the frustrating state of the world. Guest musicians on "Volume II - Power Drunk Majesty" include Trevor Strnad (THE BLACK DAHLIA MURDER), John Bush (ARMORED SAINT), Bobby "Blitz" Ellsworth (OVERKILL), Mark Tornillo (ACCEPT), Max Cavalera (SOULFLY), Floor Jansen (NIGHTWISH) and Johan Hegg (AMON). The album also marks the return of Mark Oseguesda (DEATH ANGEL) and Troy Sanders (MASTODON).