GAMMA RAY's Kai Hansen, HAMMERFALL's Joacim Cans, PRIMAL FEAR's Tom Naumann and GODIVA's Mitch Koonz are among the musicians tentatively scheduled to partake in an "all-star" jam at the 20th anniversary party for the Rockfabrik Ludwigsburg (Germany). The jam, which is slated to take place this Sunday, December 28, will reportedly include selections from HELLOWEEN and HAMMERFALL, among others.

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Gamma Ray