Video report by ITV News Correspondent Martha Fairlie
But the Canadian singer helped the Lewisham and Greenwich NHS Choir when he graciously asked his millions of fans to help them get to number one.
And this year, he is joining forces with them again. This time, the choir has been invited to collaborate on a new version of Bieber's hit 'Holy'.
The track, released on Friday, will split profits between NHS Charities Together - which represents over 230 NHS charities - and the Lewisham and Greenwich NHS Trust Charity.