Group Therapy

The genre was commercially successful during the mid-to-late 1980s and early 1990s, with the "Big Four" of thrash metal – Metallica, Slayer, Megadeth, and Anthrax – being joined by Exodus, Overkill and Testament. 

I was never much of a Slayer or Megadeath fanboy. They were alright, but I preferred Testament and Exodus. So here is MY big 4.

I will primarily focus on my favorite album from each group.  Maybe a few extras from outside that album.

Testament - Practice What You Preach

Metallica - Master of Puppets

Anthrax - State of Euphoria

Exodus - Fabulous Disaster