http://https://www.youtube.com/watch?v=-w7jyVHocTk

The organizers behind Band Aid 30 – the latest incarnation of Bob Geldof’s charitably minded supergroup Band Aid – have issued an “Ice Bucket Challenge”–style viral video call to action to music fans. Using a free iOS app called WholeWorldBand, Band Aid 30 would like people to record themselves singing Bono’s “Do They Know It’s Christmas?” line, “Tonight we’re reaching out and touching you,” and then nominate three friends to do the same on social media. The U2 frontman delivers the line at the 1:52 mark in the song’s official video.