Metal supergroup Metal Allegiance, featuring core members David Ellefson, Mark Menghi, Alex Skolnick, and Mike Portnoy, have announced their annual Anaheim show at the House of Blues on January 23, 2025. Celebrating over a decade, the lineup this year includes guest performances from Chuck Billy (Testament), Bobby Blitz (Overkill), John Bush (Armored Saint), Gary Holt (Slayer/Exodus), Marty Friedman, and more.