Killswitch Engage is an American metalcore band formed in 1999. Their discography includes several studio albums, starting with their self-titled debut in 2000. Notable releases include "Alive or Just Breathing" (2002), which helped define the metalcore genre, and "The End of Heartache" (2004), which earned them a Grammy nomination. The band has released a total of eight studio albums, with "Atonement" being their latest, released in 2019. Killswitch Engage is known for their blend of melodic elements and heavy riffs, contributing significantly to the evolution of modern heavy music.