Said lineups and the albums/EPs released are: Pre-Kill 'Em All James Hetfield(Lead vocals, rhythm guitar) Dave Mustaine(Lead guitar, backing vocals) Lars Ulrich(Drums) Ron McGovney(Bass) Released no albums, but No Life 'Til Leather (a popular bootleg demo) was recorded with this lineup Kill 'Em All - Master of Puppets James Hetfield(see above) Kirk Hammett(Lead guitar) Lars Ulrich(see above) Cliff Burton(Bass) Recorded and released Kill 'Em All, Ride the Lightning, and Master of Puppets ...And Justice For All - ReLoad James Hetfield(see above) Kirk Hammett(see above) Lars Ulrich(see above) Jason Newsted(Bass) Recorded and released ...And Justice For All, Metallica(better known as The Black Album), Load, and ReLoad Post-St. Anger/Current James Hetfield(do I even need to say it) Kirk Hammett(same as always) Lars Ulrich(seriously, he's played the same instrument for 30+ years) Robert Trujillo(Bass) Recorded and released St. Anger, Death Magnetic, Lulu(a collaboration with Lou Reed), and Beyond Magnetic