This year's London Christmas celebrations will be themed around the work of Charles Dickens.
Dickens' Victorian morality tale A Christmas Carol, written in 1843, became one of the most popular and enduring works of all time.
London will attempt to recreate the Christmas Carol spirit with its famous lights themed around the novel.
The lights in Oxford Street and Regent street will be turned on together for the first time.
The 3 November switch-on will coincide with the world premiere of Disney's A Christmas Carol film at three cinemas in the city.
The Mayor of London made the announcement on a trip to New York to promote tourism in London.