Metallica's song "The Four Horsemen" was originally known as "Mechanix" when Dave Mustaine was with the band. After kicking out Mustaine, Metallica kept most of the music from the song, but changed the lyrics and extended the length of the song. Mustaine later released the original "Mechanix" on Megadeth's first CD titled "Killing is My Business ...and Business is Good!"
I'm a wasteland of useless information. I can do this all day.
