Biffy Clyro – Machines (acoustic cover by Oliver) Jun 12, 2015 Cover, Cover Biffy Clyro, Cover Hard Rock, Cover Machines, Cover Rock, Puzzle, ‚MON THE BIFF. Like 0 Thanks! You've already liked this « Biffy Clyro. Black Chandelier Cover by A.C. » Biffy Clyro – Umbrella