Arkadiy Starodoub: Recorded a solo in the song "In Earth Orbit" on January 04, 2021 Arkadiy Starodoub +
Enver Izmaylov, Timur Vedernikov: World's Best Guitarists Show on January 04, 2021 Enver Izmaylov Timur Vedernikov +
Paul Gilbert, Bruce Bouillet: Racer X- Mad at the World Live 1988 on January 04, 2021 Bruce Bouillet Paul Gilbert +
Chris Steberl, Mark Zonder: Project Alcazar - "Occam's Razor" on January 04, 2021 Chris Steberl Mark Zonder +