System of a Down : B.Y.O.B. – drum cover Mai 9, 2016 Cover, Cover B.Y.O.B., Cover Metal, Cover Rock, Cover System Of A Down, Mesmerize, Mezmerize, Like 0 Thanks! You've already liked this « System of a Down – Question! (piano cover) » Aerials – System of a Down (Vocal cover by Prowler72790)