SWARM was founded in San Francisco during 1999, after the demise of the hotly tipped Thrash Metal oufit DEATH ANGEL by vocalist Mark Osegueda, guitarist Rob Cavestany and drummer Andy Galeon. The latter two musicians were also involved with THE ORGANIZATION. SWARM supported JERRY CANTRELL on his April 2001 US dates. DEATH ANGEL buried the hatchet in August 2001 re-uniting for a one off gig at the 'Thrash Of The Titans' festival in aid of TESTAMENT frontman Chuck Billy's cancer treatment fund.

The Belgian Mausoleum label released SWARM tracks in 2003 as the 'Beyond The End' album. Oddly, as the DEATH ANGEL reunion gathered pace, SWARM would act as live support band for their comeback gigs. Mark Osegueda announced the formation of side act ALL TIME HIGHS, this band featuring the singer alongside members of LICA-STO, TRES PISTOLAS, THE SICK and THE OOZIES.