![Mark Engles of Black Map opens for the Chevelle and Bush concert at Freedom Hill Amphitheatre on Sunday, July 24, 2016, in Sterling Heights, MI. (Photo by Amy Harris/Invision/AP Stock Photo - Mark Engles of Black Map opens for the Chevelle and Bush concert at Freedom Hill Amphitheatre on Sunday, July 24, 2016, in Sterling Heights, MI. (Photo by Amy Harris/Invision/AP Stock Photo -](https://c8.alamy.com/comp/2MY9KK5/mark-engles-of-black-map-opens-for-the-chevelle-and-bush-concert-at-freedom-hill-amphitheatre-on-sunday-july-24-2016-in-sterling-heights-mi-photo-by-amy-harrisinvisionap-2MY9KK5.jpg)
Mark Engles of Black Map opens for the Chevelle and Bush concert at Freedom Hill Amphitheatre on Sunday, July 24, 2016, in Sterling Heights, MI. (Photo by Amy Harris/Invision/AP Stock Photo -
![26. April 2008; Indio, Kalifornien, USA; Musiker MARK ENGLES, der "Dredg," beim Coachella Valley Music & Arts Festival 2008 im Empire Polo Club. Obligatorische Credit: Foto von Vaughn Youtz/ZUMA Press. (©) Copyright 26. April 2008; Indio, Kalifornien, USA; Musiker MARK ENGLES, der "Dredg," beim Coachella Valley Music & Arts Festival 2008 im Empire Polo Club. Obligatorische Credit: Foto von Vaughn Youtz/ZUMA Press. (©) Copyright](https://c8.alamy.com/compde/cd07rw/26-april-2008-indio-kalifornien-usa-musiker-mark-engles-der-dredg-beim-coachella-valley-music-arts-festival-2008-im-empire-polo-club-obligatorische-credit-foto-von-vaughn-youtzzuma-press-copyright-2007-von-vaughn-youtz-cd07rw.jpg)
26. April 2008; Indio, Kalifornien, USA; Musiker MARK ENGLES, der "Dredg," beim Coachella Valley Music & Arts Festival 2008 im Empire Polo Club. Obligatorische Credit: Foto von Vaughn Youtz/ZUMA Press. (©) Copyright
![Mark Engles: "We wanted the sound to evolve, but you've got to keep those roots. It's still big and heavy… we still love that" | Guitar World Mark Engles: "We wanted the sound to evolve, but you've got to keep those roots. It's still big and heavy… we still love that" | Guitar World](https://cdn.mos.cms.futurecdn.net/UGJaynpLzM5wH8cmcuuwUi.jpg)