Annihilator is a CANADIAN THRASH METAL BAND band founded in 1984 by vocalist, guitarist and bassist Jeff Waters. They are the highest selling heavy metal group in Canadian history, having sold 2 million albums worldwide, although most of their sales have been generated outside of the band’s home country. Their first two studio albums, Alice in Hell and Never, Never-land, are considered to be influential Canadian heavy metal records.

Since its inception, Annihilator has released thirteen studio albums and has undergone many line-up changes. The band now consists of two official members, with Waters on both guitar and bass and Dave Padden, who joined in 2003, as a rhythm guitarist/vocalist. Since 2007, Waters and Padden have assembled touring musicians to perform with them. Their latest studio album, Feast, was released in 2013.
Annihilator was formed in Ottawa, Ontario, Canada by Jeff Waters in 1984. He wrote and recorded the song “Annihilator” with singer John Bates. This original version of “Annihilator” was released on the special edition of the 2005 album Schizo Deluxe.
Waters and Bates then recruited drummer Paul Malek and bassist Dave Scott. This lineup lasted a year, producing a demo titled “Welcome To Your Death” during their time together. The demo received worldwide recognition and became highly sought after. Jeff Waters and drummer Paul Malek recorded another successful demo titled “Phantasmagoria” in 1986. A third demo was recorded by Waters and Malek in 1987 and was sent only to labels. It included more songs that would end up on the first two Annihilator studio albums. Here is the best 10 riffs of Annihilator.
(SOURCE: WIKI – http://en.wikipedia.org/wiki/Annihilator_%28band%29)