Machine Head is a highly influential American heavy metal band known for their aggressive sound, intricate guitar work, and intense live performances. Formed in 1991, they've been a driving force in the metal scene, blending elements of thrash and groove metal. Led by guitarist/vocalist Robb Flynn, their music often tackles social and personal issues, delivering powerful messages through their lyrics. Over the years, Machine Head has evolved their sound while maintaining their signature intensity, earning them a dedicated fanbase and a lasting impact on the metal genre.