Do They Know It's Christmas?

Do they Know it's Christmas ~ Band Aid 1984
http://www.youtube.com/watch?v=bjQzJAKxTrE

Band Aid 30 - Do They Know It’s Christmas? (2014)
http://www.youtube.com/watch?v=-w7jyVHocTk

Do They Know It's Christmas? on Wikipedia
バンド・エイド on Wikipedia