As Blood Runs Black is an American deathcore band hailing from Los Angeles, California, known for their intense blend of death metal and hardcore punk elements. Formed in 2003, they quickly established themselves within the extreme music scene with their aggressive style and dynamic live shows. The band's lineup has undergone several changes over the years, with drummer Hector "Lech" de Santiago being the only constant member since their inception.

Their 2006 debut album "Allegiance" catapulted them to prominence within the metal community, featuring a punishing mix of fast-paced riffs, breakdowns, and guttural vocals. It was followed by "Instinct" in 2011, which showcased a progression in their sound with more technical musicianship and complex song structures. This was succeeded by "Ground Zero" in 2014, which continued to demonstrate the band's ability to evolve their sound while maintaining the ferocity that they are known for. Although As Blood Runs Black have been relatively quiet on the scene in the years following "Ground Zero," the impact of their first three albums continues to resonate within the genre, and fans eagerly await any signs of new activity from the band.