From early days of infancy, through trembling years of youth,Long murky middle age and final hours long in a tooth,He has a hundred names of terror, creature you love the least,Picture his face before you and exorcise the beast.Hero up and down through history, specter with tales to tell,In the darkness when the campfire's dead to each his private hell,Yet you look behind your shoulder as you feel his eyes defeat,You can witness now the ever-changing nature of the beast.Beastly!Beastly!Beastly!Beastly!If you wear a warmest foreign, you can keep the foe at bay,You can pop those pills and visit some psychiatrist they'll say,There is nothing I can do for you, everywhere's a danger zone,I'd love to help get rid of it but I've got one on my own.Beastly!There's a beast upon my shoulder, beastly!And a fiend upon my back, beastly!Feel his burning breath and heaving, beastly!Smoke the oozing from his stack.Beastly!Yet he moves beneath the covers, beastly!Or he lies below the bed, beastly!He's a beast upon your shoulder, beastly!But he can live inside your head.Beastly!He's the lonely fear of dying, and for some of living too,He's your private nightmare-breaking, he'd just love to turn the screw.So stand as one defiant, your sun-ledged voices swell,Stare that beast in the face and really give him hell.Beastly!There's a beast upon my shoulder, beastly!And a fiend upon my back, beastly!Feel his burning breath and heaving, beastly!Smoke the oozing from his stack.Beastly!Yet he moves beneath the covers, beastly!Or he lies below the bed, beastly!He's a beast upon your shoulder, beastly!But he can live inside your head.