http://en.wikipedia.org/wiki/SOAD
Soil was the name of their jam band before they actually started System.
Dont get me wrong, Serj is a great singer and has a really dynamic voice but I HATE it when a person names their band after themselves! I think its arrogant as fuck and really detracts from the rest of the band. If you really need to have your name in a band, then it should be something like, "[Your name here] and the [something or others]." For instance, Tom Petty and the Heartbreakers.