Serj Tankian (Armenian: [ˈsɛɾʒ tʰɑnˈkjɑn]; born August 21, 1967) is a Lebanese-born Armenian-American musician, singer, songwriter, multi-instrumentalist, record producer, poet and political activist.He is best known as the lead vocalist, songwriter, keyboardist, and occasional live rhythm guitarist of the alternative metal band System of a Down, formed in 1994. Or would you ever take the mic as a lead singer? I definitely wouldn’t sing, I wouldn’t want people to leave!…