Metal Allegiance, the all-star supergroup featuring core members David Ellefson (ex-Megadeth), Mike Portnoy (Dream Theater), Alex Skolnick (Testament), and Mark Menghi (King Ultramega), have announced a January 2026 concert featuring a bevy of notable guest performers. The show is set for the House of Blues in Anaheim, California, on January 22nd, in the midst of the nearby NAMM convention taking place January 20th-24th.