Justin Bieber is continuing his philanthropic endeavors and has signed up to back a Facebook game with a social conscience that helps to raise money for charity. 

The teenage sensation has invested a cut of his own finances in WeTopia, which is a new social networking creation from Sojo Studios that sees players buy and sell virtual goods for points.

These points will then be turned into real money and it will go to a variety of aid projects around the globe. 

Speaking about his decision to buy into the game, Canadian Bieber explained that he just wants to keep giving back while he can:

"I've been so lucky and blessed and that's why I believe so much in giving back, and I know my fans will feel the same way when they play WeTopia."

Watch Bieber's festive performance from Washington below: