Speaking to ITV News ahead of tonight's switch on in Oxford Street, Jessie J said Christmas helped put London in a good mood - which was what the capital sometimes needed.
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West Ham have opened an investigation into a flyer that was allegedly distributed ahead of the game with Chelsea.
Damon Joseph Smith smiled and waved at his mother, who waved back.
Tanguy Marie De Carne, 53, jumped red traffic lights and rode on busy pavements through the City pursued by police