Jack Black as twisted Bob Ross doppelgänger in his first episode of "Post Apocalypto"

What do you get when you cross Bob Ross with a post-apocalyptic world? Perhaps this clip, from the first episode of the upcoming six-episode web series, Post-Apocalypto, brought to you by rock duo Tenacious D (Jack Black and Kyle Gass).

The series, starting this Friday on YouTube, will promote Tenacious D's new and fourth studio album Post-Apocalypto, which will be released November 2.

From Metro:

A new episode will be released every Friday until the album's debut - and viewers will be treated to new songs by the band as well animations drawn by Jack himself. According to the official synopsis, Post-Apocalypto 'finds Tenacious D thrust into a world of complete and utter destruction following the drop of an atomic bomb'.

For now, we have this sneak peek to enjoy.