At an open mic night , Tenacious D are performing " Training Melody " to an indifferent crowd , one of whom says they suck ( Dan Harmon ) . After the show , they get a message from Michael Keaton as himself , saying that the time-space continuum has been disrupted in the Ford 's Theater in 1850 . After they travel there , they discover Abraham Lincoln ( Justin Roiland ) walked out of his play due to hating it , therefore preventing his assassination . Kyle Gass attempts to convince him to get shot and bribes him with seven cents , which he thinks is a thousand dollars there , but Abraham refuses . The two confront the Time Goblin ( JR Reed ) who staged the scenario so he could confront Tenacious D and take their " time machine " ( a normal-looking car with time-travel capabilities , much like the DeLorean time machine ) . They fight , and the Time Goblin wins . He ties them into the presidential party box so John Wilkes Booth will assassinate them instead and takes the time machine . The two break free and discover Abraham is willing to get shot , since he discovered from Kyle 's seven cents his face is on the future penny and is grateful . When Jack and Kyle realize they still do not have a time machine , they discover H.G. Wells , who has the time machine from his book and they leave with it
his assassination
Assassination of Abraham Lincoln
Tenacious D: Time Fixers