PIC FROM CATERS (PICTURED: LEE VERNON PROPOSING TO SOPHIE SHIMWELL) A young man proposed to his 19-year-old girlfriend by surprising her with a flash mob, which he had secretly organised. Lee Vernon, 20, from Nottingham secretly organised a choir, dance troupe and marching band to perform for his girlfriend Sophie Shimwell in the middle of Nottingham town centre. The shocked bride-to-be said she had no idea what was happening when normal members of the public started to break into song and dance in front of her. Completely oblivious Sophie, a part-time model, was perched on a step in the Market Square expecting to be enjoying a nice day out with her boyfriend when a choir of people began to serenade the couple. SEE CATERS COPY