Killswitch Engage have have had a few changes along the way of an awesome career atop the heavy metal scene. They lose their original singer, Jesse Leach, and, replace him with another killer vocalist in Howard Jones. Then, things changed again in 2012 as Jones leaves the band, and Leach comes back. No matter who has fronted the band, I think we can all agree that Killswitch Engage is still one of the best heavy bands out there. With that said, here are all the band's official videos for you to check out featuring both singers.