Killswitch Engage (often abbreviated as KsE) is a metalcore band from Westfield, Massachusetts. They are well known for being leaders in the New Wave of American Heavy Metal, along with Lamb of God and God Forbid. Formed following the disbandment of the bands Overcast and Aftershock, Killswitch Engage's lineup consists of vocalist Howard Jones, bassist Mike D'Antonio, guitarists Joel Stroetzel and Adam Dutkiewicz, and drummer Justin Foley. Signed to Roadrunner Records, Killswitch Engage has released four studio albums and one DVD.

Killswitch Engage rose to fame with its 2004 release The End of Heartache, which peaked at number 21 on the Billboard 200, and was certified gold in December 2007 for over 500,000 shipments in the United States. The title track, "The End of Heartache", was nominated for a Grammy Award in 2005, and a live DVD titled (Set This) World Ablaze was released in 2005. Killswitch Engage has attended Reading and Leeds Festivals, Ozzfest, Download Festival and the Warped Tour, and is scheduled to continue touring until April 2008.

Killswitch Engage is a metalcore band from Westfield, Massachusetts, USA. Their sound mixes crushing riffs, double bass drum patterns, and furious screaming-growling vocals with melodic elements. Their music is heavily influenced by the Gothenburg music scene. A key feature of the band’s sound is the use of complex single-note and power chord riffs featuring dual-guitar harmonies, often punctuated with pinch harmonic squeals. Following the demise of his band Overcast in 1998, bassist Mike D’