It looks like Jamelia is now joining the trafalgar Square meeting for a one off gig in honour of Nelson Mandela.
Jamelia says:
“I certainly hope that thousands of people take an early lunch break this Thursday and join me in Trafalgar Square to witness Nelson Mandela’s support for the Make Poverty History Campaign. It is a true honour to be able to perform at this momentous occasion, not only for a man I greatly admire and respect, but also for the UK public and fans around the world”
Adrian Lovett of the Make Poverty History coalition said:
“The excitement about Mr Mandela’s visit is growing all the time. We’ve been overwhelmed by the numbers of people saying they want to see him at Trafalgar Square. When he delivers his tough message to the world’s most powerful decision makers, thousands of voices will be cheering him on”.
More details here
The Shiny Headed Prophet 
I just wrote Gordon Brown a note,using your link and I told him to get someone to buy fair trade refreshments for all the meetings throughout the G7.Hope you see Jamelia & Nelson Mandela – that would be cool!I wonder how the media will portray the whole event – I will watch the bbc/guardian websites with anticipation.Joe F
Nelson Mandela supported by Gills player’s partner! Will be trying to come tomorrow with a few mates from uni. Hopefully might spot you there.Wear the band with pride!Dave