Starbucks is running the largest Facebook campaign ever, however Australia has been left out of the list of countries to be targeted.

Users in the 16 countries targeted (including the US, UK, Canada, Spain, France, Korea and Hong Kong) will be served ads for Starbuck’s (RED) charity singalong the first five times they sign in to Facebook.

The singalong will involve a number of invited musicians performing All You Need Is Love simultaneously filmed and streamed to the site . It will be held at 1:30pm GMT on 7 December. Following the stream, viewers will be invited to perform and upload their own version. Each user submission will attract Starbucks contribution to (RED).

(RED) is a charity that fights AIDS in Africa.

Starbucks was forced to lessen its Australian presence during the GFC.