There are mutliple artists with this name:
1) Doom began as The Subverters with Jon Pickering (bass/vocals), Brian Talbot (guitar) and Jason Hodges (drums). After Jason was replaced by new drummer, Mick Harris, the band changed its name to DOOM.
This line up played one or two gigs, playing in a crossover metal style. Talbot and Pickering decided this wasn't the direction they wanted the band to move in. Consequently they left Harris and the metal style of music Read more on Last.fm