Stars back Bob Marley aid campaign
Stars including Lady Gaga and Beyonce have pledged to support a campaign to raise awareness of the famine in Somalia.
The I'm Gonna Be Your Friend campaign has made a short film about the crisis, set to the Bob Marley And The Wailers song High Tide Or Low Tide.
The video is going on sale through iTunes and through Bob Marley's Facebook page, and stars such as Gaga and Beyonce have pledged to promote it online.
Other stars supporting the campaign include Rihanna, Eminem, Justin Bieber and Jennifer Lopez.
Funds raised will be donated to Save the Children.