Jack Topping is another hopeful in the running for this year's Christmas number one, and this week he performed and switched on the lights at St Pancras International.
The 11-year-old is the youngest ever artist to sign to Decca Records, and has a new charity single - 'Tomorrow' - which is to feature on a new Save the Children TV advertisement airing from December 1.
Watch a video of Jack performing the song at the Christmas light switch-on below.
Also revealed was the Fortnum & Mason provided St Pancras Christmas tree, standing at 35 feet high with 2,000 mini hampers adorning its branches.
Jack's debut single 'Wonderful World' is released December 2, and 'Tomorrow' is available to buy from December 9.
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