Shatter Brain is a hardcore punk band from San Francisco, California. Formed in 2018, the band quickly gained a reputation for their intense live shows and their uncompromising sound. Their music is a blend of classic hardcore punk with elements of thrash and metal, and their lyrics often deal with themes of social and political injustice. Shatter Brain has released a number of EPs and splits, and their debut full-length album, "Iron Fist," was released in 2022. The band has toured extensively throughout the United States and Europe, and they have shared the stage with some of the biggest names in hardcore punk, including Negative Approach, D.R.I., and Suicidal Tendencies.