Robbie Williams will turn on the Christmas lights later this evening at Oxford Street in London.
The 38-year-old from Stoke-on-Trent will be joined by Leona Lewis and Lawson.
Tens of thousands are expected to attend the event, which will be ticketed for the first time.
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Tuesday will be a rather cloudy and breezy day with the risk of a little rain at times.
Dry at first with sunny spells.
Our presenters have spoken to Dr Christine Harrison from the University of Warwick on the issues of bullying. Click here for advice.