Lucy Rogers was on her way home from work, on the 19.57 overground train to Watford Junction, when a group of commuters started singing Bill Withers' 'Lovely Day' spontaneously. It wasn't until her boyfriend, Adam King, showed up that she realised the whole thing had been arranged for her.
King had been planning the elaborate proposal for months, enlisting the help of his choir mates from Adam Street Choir. The group had been rehearsing diligently, with King even building a replica of the carriage to make sure everything would go perfectly.
