Lloyd Grant is known in metal circles as the man who played lead guitar on the first Metallica recording, a nascent version of the thrash classic “Hit the Lights.” Grant recently recounted the process in an interview with the show Rockzone Legends. Via Blabbermouth:

(Metallica’s Lars Ulrich) called me and said they were gonna be on this compilation album and he brought over a tape of “Hit the Lights” recorded on a four-track and asked me to make some solos for that, and they were gonna bring the four-track down and they were just gonna put it out an dump it on the (Metal Massacre).

His playing was replaced by that of Dave Mustaine on the second and third pressings of the fabled album.
Get Grant’s take on playing at Metallica’s 30th anniversary show and much more at Blabbermouth.

Right here.