Captain Sensible - "One Christmas Catalogue"
Over the one Christmas season when I worked at Bob's Stores, this played 3-4x an hour. Every day. For 3 months. November 1st to January 31st. The store manager outright refused to turn the volume down during my shift, even though I was part of the pre-open stock crew. She literally forced this fucking song at full volume for 4-5 hours before customers even came in.