Joining Holly to help honour the deserving are Britney Spears, Olly Murs, Torvill and Dean and Michael Bublé.
James Colbourn has been nominated by his younger sister Sadie who wants to thank him for all the support he's given her and her twin boys, who suffer from cerebral palsy. James has given up his spare time and cared for his nephews like they're his own and she wants to give him a special gift.
James is shocked when he receives an unexpected surprise at The Savoy hotel in London from pop star Britney!
Also, a Cher fan gets a message she'll never forget and Olly Murs gives a festive performance.
Surprise Surprise Christmas Special, ITV, 8pm
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