No Life 'til Leather is Metallica's widely circulated demo tape featuring Dave Mustaine on lead guitar. All the tracks are early recordings of songs that would later appear on the band's Kill 'Em All album. The track listing on Kill 'Em All is the same as that on the demo tape, save the addition of Cliff Burton's bass solo "(Anesthesia) Pulling Teeth", "Whiplash", "No Remorse" and "The Mechanix" ("The Mechanix" was re-written by Metallica as "The Four Horsemen").

The demo has been re-released twice unofficially, first under the title of Metallica—Bay Area Thrashers, and was alleged to be a live bootleg recording of Metallica in the early days, however all 'live' sounds had been added from various sources including the Metallica video Cliff 'Em All. This was soon discovered by Metallica and all copies were removed from stores. The demo was re-released a second time under the title Metallica—In the Beginning... Live, containing no differences from Metallica-Bay Area Thrashers.

Mustaine recorded his own version of "The Mechanix" on Megadeth's debut album Killing Is My Business... and Business Is Good! The demo, along with two other songs, can be found on many peer-to-peer networks under the moniker One Last Visit.


Track listing:
"Hit the Lights" - 4:19
"The Mechanix" - 4:28
"Motorbreath" - 3:18
"Seek & Destroy" - 4:55
"Metal Militia" - 5:17
"Jump in the Fire" - 3:51
"Phantom Lord" - 3:33

Personnel:
James Hetfield vocals, rhythm guitar
Dave Mustaine lead guitar, backing vocals
Ron McGovney bass guitar
Lars Ulrich drums, percussion (less info)