A new version of the song "Do They Know It's Christmas" is out today — November 25. And it's already stirred up a bit of controversy. British rocker Bob Geldof was the driving force behind the first version of the song, released 40 years ago to raise funds for Ethiopians facing hunger and credited to "Band Aid" — a collection of superstar musicians. The single has been credited with raising $10 million for the cause. The song was re-recorded in 2004 and 2014.