Probot was a heavy metal recording project led by American musician Dave Grohl,
formed as a side project from his primary group Foo Fighters. The self-titled
album, Probot, was released on February 10, 2004, and featured a different guest
vocalist on each track, including Lemmy, Max Cavalera, King Diamond, and Tom G.
Warrior. The album produced two singles, "Centuries of Sin" and "Shake Your
Blood", the latter accompanied by a music video. Grohl later said he doubted the
project would continue in any form, though tracks from the album were performed
live in later years, including...