Mechanix

"Mechanix" is a song by the American thrash metal band Megadeth. It is the eighth and final track from their debut studio album, Killing Is My Business... and Business Is Good!, which released in 1985 under Combat Records. "Mechanix" has been featured on many Megadeth releases, including multiple greatest hits albums, as well as live albums. The song was performed live by frontman Dave Mustaine's first two bands, Panic and Metallica, and was included on many Metallica demo tapes, including Power Metal and No Life 'Til Leather. After kicking Mustaine out, Metallica reworked the song into "The Four Horsemen", which was featured on their debut album, Kill 'Em All (1983). Mustaine claims that the idea for the title "The Four Horsemen" came from his suggestion that Metallica play a cover of the Gamma song "Four Horsemen".