Occurred on October 23, 2021 / Baltimore, Maryland, USA

: "On my connecting Southwest flight out of Baltimore, we were delayed because the crew was coming in on a late flight and there was last-minute baggage to be loaded. Once we boarded the plane we had to wait a while on the tarmac so one of the flight attendants decided to sing us a song right before it was finally time to give the safety briefing and take off."