The little drummer boy by David Bowie and Bing Crosby!
My work has Christmas music playing throughout the cave A few of them are rockin versions of popular songs including Run Run Rudolf by Chuck Berry which is a nice change of pace... and then you get Bing Crosby or Frankie Sinatra and others thrown into the mix... heck they even play the "You're a Mean One... Mr Grinch: ...Please Come Home For Christmas,