Probot was a heavy metal side project of ex-Nirvana drummer and Foo Fighters rhythm guitarist and lead-singer Dave Grohl. Described by Grohl as "a death metal Supernatural", the album mixes instrumentals recorded by Grohl himself with various metal singers whom the musician admired. The album was released in February 2004 by Southern Lord Records. It featured one single entitled "Centuries of Sin"/"The Emerald Law".
After years of popularity in the alternative rock scene, Dave Grohl wanted to express the passion for heavy metal he bore since his youth. He mentioned the catalyst of the experience being during the first leg of the tour in support of the Foo Fighters album There Is Nothing Left to Lose, with the mellower songs making him think about the heavier bands he used to listen to. Following the tour, Grohl went to his house in Alexandria, Virginia, to record some heavier songs in his home studio St…Read more on Wikipedia