A new group of stars coming together to record a new version of Do They Know It's Christmas this year to raise funds to fight Ebola in West Africa.
The original single, released in 1984, topped the charts and raised £8 million (S$16.5 million) for famine relief in Ethiopia.
Here's a recap other charity singles we sang along to:
We Are The WorldCauses: The original by Michael Jackson raised funds for famine and disease in Africa. It was revived in 2010 for Haiti earthquake relief
Candle In The Wind 1997Cause: Princess of Wales Memorial Fund
OneCause: U2 recorded the song for Aids Research
Believe，相信爱 (Believe In Love)Cause: To raise funds for the Fukushima disaster in March 2011
明天会更好 (Tomorrow Will Be Better)Causes: Originally written for the World Day of Peace in 1986, it was later used as an anti-piracy anthem by artistes in Taiwan and Hong Kong