Text Santa, ITV's festive appeal to help six charities, culminates tonight with a special appeal show but throughout the day there have been fundraising events.
And stars of West End shows got in the spirit of things this afternoon, by singing Christmas carols in Leicester Square.
Here's our Arts and Entertainment Correspondent Lucrezia Millarini.
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Sophia Pedraza, 26, wants to cash in on the craze by collecting the virtual monsters before selling her accounts on eBay.
Stephen Port, 41, is already accused of drugging and murdering four men he met on gay websites before dumping their bodies near a church.
Wilkins, who played for Chelsea and Manchester United, was arrested on July 1 near Heathrow Airport and and charged with drink-driving.