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. The title of the demo comes from the first line of 'Hit the Lights'. It is unknown why No Remorse didnвЂ™t appear, as it was on an earlier demo. The only songs on Kill 'Em All that arenвЂ™t on the tape are Cliff Burton's bass solo '(Anesthesia) Pulling Teeth', ' Whiplash', 'No Remorse' and 'The Four Horsemen' (See notes above). All of the tracks are early recordings of songs that would later appear on the band's debut album Kill 'Em All. It is Metallica's most widely circulated demo tape. No Life 'Til Leather was recorded on July 6, 1982. Mustaine also included a reworked version of the song, simply titled 'Mechanix', on Megadeth's 1985 debut album, Killing Is My Business.

'The Mechanix' is the original version of 'The Four Horsemen', which later appeared on Metallica's 1983 debut album Kill 'Em All.

It was also, like all previous demos, recorded in McGovney's garage. The tape contained four original songs, including two new songs, 'The Mechanix', written by Dave Mustaine, and 'Motorbreath', written by James Hetfield.

Although the demo has never been officially released, it was given the bootleg name 'Power Metal' after the tagline McGovney had printed on Metallica's first business cards. Power Metal is the name given to a demo recorded sometime in April 1982. Dave Mustaine вЂ“ lead guitar, backing vocals.James Hetfield вЂ“ lead vocals, rhythm guitar.'Helpless' (originally performed by Diamond Head) ' Am I Evil?' (originally performed by Diamond Head) 'The Prince' (originally performed by Diamond Head) 'Sucking My Love' (originally performed by Diamond Head) No Remorse and Helpless have circulated on Youtube as the Whiskey demo, though this isn't true. The validity of these two tracks was confirmed by McGovney, during a 1996 interview with Shock Waves and also via the Metallicabb forum. One track consisting of riffs and ideas that would later go on to become both Metallica and Megadeth songs is commonly titled as 'Jam', while the other track is a melodic piece played by Hetfield and McGovney, widely known on YouTube as 'Unreleased Kill 'Em All song'. Apart from the songs listed below, two other tracks recorded during different sessions, consisting of songwriting ideas and various unreleased riffs, have also been widely bootlegged. Although the demo has never been officially released, it has been in wide circulation in various bootleg versions. This demo tape was also recorded in McGovney's garage during March 1982. 'Let It Loose' (originally performed by Savage) 'Killing Time' (originally performed by Sweet Savage)

Metallica ride the lightning demo