Diabolic is an American death metal band from Tampa Bay, Florida, United States, founded in 1996 by bassist/vocalist Paul Ouellette, drummer Aantar Lee Coates and guitarist Brian Malone.
By January 1997, Diabolic drummer/founder Aantar Coates had relocated to Tampa, Florida and after forming the first complete lineup, recorded and released the successful demo City of the Dead.
Diabolic was soon enlisted for the "Death Metal Massacre Tour 2000", opening for Cannibal Corpse, God Dethroned and Hate Eternal, playing to sold-out venues for four weeks, all across the USA.
Produced by Neil Kernon (Cannibal Corpse, Nile, Judas Priest) and released on Century Media Records, but without the trademark Diabolic of the past it garnered lackluster reviews.
Despite its apparent success, Unholy Ghost soon disbanded in 2005 and lead guitarist Kelly McLauchlin went back to work with Pessimist, and drummer Aantar Coates went on to form yet another new band, Blastmasters.
Original drummer Aantar Coates along with Unholy Ghost/Pessimist guitarist Kelly McLauchlin and parts of the Blastmasters lineup (RJ/guitars and Jesse Jolly/bass, Vox) recorded their comeback EP, Possessed By Death in 2007.
Diabolic continued by playing select shows in Tampa with Monstrosity and Six Feet Under, and festivals including "Mayhem in May" in Louisville, Kentucky and "Gathering of the Bestial Legions III" Metalfest in Hollywood, California.
In April 2010, Diabolic was hand-selected to open the first several dates of the Cannibal Corpse "Evisceration Plague" Tour (in place of 1349), including shows in Atlanta GA, Raleigh NC, Washington DC and Long Island, NY.