That horrible sound isn’t your hangover, it’s The Portsmouth Sinfonia mauling the opening of Also Sprach Zarathustra by Richard Strauss, better known as the opening theme of 2001: A Space Odyssey. Almost as bad is Elvis’ band’s unintentionally comic version, featuring botched, out-of-tune horns and cheesy background vocals (The Jordanaires, I assume):
Brutal.
An aural affront to humanity, yet somehow better than we deserve.
Made even funnier when put to the actual opening credits of 2001: A Space Odyssey.