Jimmy Page (LED ZEPPELIN), RUSH, AEROSMITH, Lemmy Kilmister (MOTÖRHEAD), Brian May (QUEEN), Kerry King (SLAYER), Tom Morello (RAGE AGAINST THE MACHINE) and Slash (VELVET REVOLVER, GUNS N’ ROSES) are among the artists who have recorded video testimonials congratulationg METALLICA on the band’s 30th anniversary. You can see all the clips at this location. Source: Blabbermouth.net