The launch of social media campaign I'm Gonna Be Your Friend hopes to reach over a billion people in support of Save The Children's appeal for the East Africa crisis.

Celebrity supporters, including Lady Gaga, Jay Z, David Beckham and Beyoncé will 'share' a short film of the suffering set to Bob Marley & The Wailers song High Tide Or Low Tide via their social networks, which together total over 700 million Facebook and Twitter fans. The film, created by award-winning director Kevin MacDonald, can be downloaded through iTunes and at Imgonnabeyourfriend.org.