Sing for your supper

Samsung is partnering with MySpace, Facebook and Bebo to promote four unsigned bands in an ad campaign this summer, The Guardian reports.

The bands will be promoted through the social networks and over the radio. Musicians interested in joining can upload a 45-second MP3 sample to www.f400share.com.

Users will vote on the top four in late June. The campaign is for Samsung's F400 mobile handset.