The Devil’s Mischief #644 Hop in the time machine with Bill M. for a 1970s HALLOWEEN NOVELTY special! The Devil’s Mischief turns focus from comedy to novelty with a unique selection of 13 Halloween-fitting songs from the 1970s, plus vintage TV commercials, horror movie trailers, and more! Did the decade have its own sub-genre of Halloween rock? Listen and decide! Stream The Devil’s Mischief #644. Download The Devil’s Mischief #644.