Serj Tankian September 18, 2010

Serj Tankian is a musician, activist and songwriter. He is best known as the lead vocalist, keyboardist and rhythm guitarist of the alternative metal band System of a Down, as well as, along with Tom Morello, the co-founder of Axis of Justice, a nonprofit organization.

Official Website: http://www.songkick.com/concerts/5638911-serj-tankian-at-greek-theatre