u/mesablanka

in order: Skrillex / Sonny Moore (former lead singer of post-hardcore band From First To Last); Steve Aoki (was the lead vocalist of screamo band This Machine Kills, and played guitar on Esperanza and The Fire This Time, plus his label Dim Mak originally released music from hardcore acts); Zedd (ex-drummer of prog metalcore band Dioramic); Razihel (was the original unclean vocalist of italian post-hardcore band Hopes Die Last; he left the band shortly after the release of their EP Your Face Down Now in 2008, but has since reunited with the band alongside the original lineup on their reformation of a few years ago)