When it comes to rage-fuelled groove metal, Five Finger Death Punch are staunch devotees, but the L.A. act also enjoy dishing out nu-metal, metalcore and hard rock. With help from Tech N9ne, the band transform LL Cool J's “Mama Said Knock You Out” into a rumbling bulldozer, while on “Ashes” they incorporate agile, clean-yet-harsh vocals and speedy riffs, showing their love of old-school metal.