Crossover Thrash is a musical genre that combines elements from thrash metal and hardcore punk. It emerged in the 1980s and is characterized by fast and aggressive guitars, loud and rhythmic drums, as well as intense vocals. The music is often politically charged, expressing social and political criticism through the lyrics. Well-known bands of the genre include Suicidal Tendencies, D.R.I., and Municipal Waste, and the genre continues to influence both the metal and punk communities worldwide.