Arnold Ruha – Gate 21 [ Goodbye ] (Serj Tankian cover) Jun 12, 2015 Cover, Cover Alternative, Cover Gate 21, Cover Serj Tankian, Imperfect Harmonies (Deluxe Limited Edition), It’s a Serj Tankian cover. Hope you like it! Like 0 Thanks! You've already liked this « Goodbye Gate 21 – Serj Tankian feat. Tom Morello cover guitar » Gate 21 Serj tankian Cover