Maybe Metallica's most popular album is "Master of Puppets"...the songs are very popular in the gigs...there's a fast "Battery", the heavy killer tracks "The Thing That Should Not Be", "Welcome Home", the fast "Damage Inc." (like "Dyers Eve" or "Metal Militia", a heavy track). "Leper Messiah" is a great song too...there's a riff written by Dave Mustaine from Megadeth. The title track is a popular live track but I find it a little bit boring and overrated...still, it's a classic. The songs "Disposable Heroes" and "Orion", an instrumental track are the only songs I wouldn't like to hear live...other are killer tracks.Stars: Leper Messiah, The Thing That Should Not Be, Battery