This article summarizes a magazine article about the new version of the song "Do They Know It's Christmas" by Band Aid 30. It discusses how the song reached number one on the UK charts, becoming the fastest selling single of the year so far. It notes that several popular artists participated in the new rendition, such as Rita Ora, One Direction, and Sam Smith. The article also compares the sales of this new version to other recently released songs in the UK charts.