Date of Birth: 
About Jim Adams (musician)
- Mark Hernandez Defiance is an American thrash metal band from Oakland, California.
- They played a decidedly technical style of thrash originally evoking bands like Testament, though they would later move on to playing in their own unique, more progressive thrash style.
- After dissolving in 1995, they reformed in 2005 and released their fourth studio album The Prophecy in late 2009.
- They broke up once again in 2012, but announced yet another reunion in September 2019.
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