Fans all over the world engage with Killswitch Engage's savage vocals, roared over throbbing guitars and ever-kinetic drums. Killswitch Engage formed from defunct groups Overcast and Aftershock in 1999. Fusing metal, hardcore and hard rock, the band's sound is characterized by growls, power-clean vocals, and up-tempo guitars riffs. Killswitch rose to fame in 2004 with their debut album The End of Heartache, attracting both critical and popular success. A single was nominated for Best Metal Performance at the 2014 GRAMMY® Awards.