Serj Tankian Videos
System of a Down singer and Audioslave members perform "Like a Stone" at Germany's Rock im Park Festival
System of a Down singer makes surprise appearance to deliver "The Rains of Castamere"
Passionate acoustic tune calls for solidarity among Armenians in disputed region of Azerbaijan
"This video is dedicated to all those fighting for truth, recognition and justice for the first genocide of the 20th Century and all subsequent genocides," Tankian says