Our reporters were at the Live 8 concerts around the world to bring you all the gossip and atmosphere from the big day.
Thousands of people are at concerts around the world
So for all the news behind the scenes, follow our live blog with entries from our reporters, performers and fans at the concerts.
LATEST UPDATES FROM FANS, PERFORMERS AND OUR REPORTERS...
1928, Andrew, from Newcastle, at Hyde Park
I think Bob Geldof's done something really historic here today.
1920, Lucy, from East Sussex, at Hyde Park
I'm just here to watch the bands, really.
1912, Polly de Blank, BBC News, Eden Project
After Youssou N'Dour's performance a helicopter flew overhead which we thought was to take him to his next performance in Paris. But it was surprise guest Dido who turned up to perform 'Seven Seconds' that had the whole crowd singing along. Then the really powerful moment came, when Youssou performed 'Africa' which brought tears to many faces in the crowd.
1901, Jo-anna, from London, at Hyde Park
Dido was amazing and when she was singing with that guy, singing 'Seven Seconds', it was amazing. Everybody's in such a great mood.
1844, Nick Miles, BBC News, Johannesburg
Nelson Mandela got the biggest cheer of the day when he appeared on stage to say that G8 leaders must not make hollow promises. There was a general feeling of scepticism in the crowd about what will happen in practice as a result of the concerts.
1840, Ray Furlong, BBC News, Berlin
The shadows are slowly lengthening over the Tiergarten park here. After a raucous opening afternoon of music, the atmosphere is now mellowing with Brian Wilson of the Beach Boys coming up next.
1831, Robbie Williams
I just got in off a plane from America yesterday and I'm a bit tired. I haven't done anything for two years, I haven't played a gig for two years.
1825, Annie Lennox, speaking to Jonathon Ross
Africa is a can of worms. It's very, very complicated, but we have to make a start. We cannot walk away from genocide, which is what we've been doing. Thank God for Bono, thank God for Bob.
1821, Gillian Ni Cheallaigh, BBC News, London
By an incredible stroke of timing, my producer and I managed to grab a one to one interview with Bill Gates after waiting for him to finish using the bathroom! Definitely a unique career moment.
1816, Dan Aykroyd, on stage in Canada
Canadians care! Canadians care!
1810, Damien Grammaticus, BBC News, Moscow
Around 10,000 Russians have turned out in Red Square. It may have been a smaller crowd than organisers had wished for, but Russia is the poorest member of the G8 and African poverty is low down the agenda. The original Live Aid concerts were not seen here because the then Soviet authorities decided not to broadcast them.
1814, Stefano D'Archangelo, Rome
This is our Woodstock, it's the biggest concert I've ever seen.
1800, Christine Jeavans, BBC News, Hyde Park screens
The crowd keeps on growing. Brad Pitt coming on stage caused the biggest scream of the day so far, but everyone then fell into silent reflection for Annie Lennox's moving 'Why?'.
1752, Jamie Coomarasamy, BBC News, Philadelphia
Compere Will Smith urged the crowd to click their fingers every three seconds to symbolise how often a child dies because of poverty in Africa. Official figures have put the crowd at over 1 million but before the concert began many were unaware of the reasons behind the concert.
1749, Roger Waters, on reforming Pink Floyd
It seemed like a good opportunity for reconciliation to have a small victory over rancour. Life's too short otherwise.
1740, Brad Pitt, on stage in Hyde Park
Let us be the ones who say we are not satisfied that you're place of birth determines your right to life. Let us be outraged, let us be loud, let us be bold.
1733, Emmanuel Diao, Eden Project, speaking on BBC Three
What they told me was that if you haven't sold 4 million CDs then you can't perform at Hyde Park, you have to go to Cornwall. If it's fair trade, why don¿t you take the musicians to a wider view where more people will see them and will choose to promote their music?
1730, Midge Ure, Hyde Park, speaking on BBC Two
This is very different to Live Aid. The last time we wanted your money but this time it's about standing up and being counted.
1723, Bob Geldof, Hyde Park
Walking onto the stage to perform his hit I Don't Like Mondays with Travis, he said: "I just had to play on this stage."
1719, Ian Youngs, BBC News, in Hyde Park
The scale of the event hit home when Will Smith appeared on screens from Philadelphia and introduced pictures of crowds around the world.
1717, Ray Furlong, BBC News, Berlin
Aside from the fun, the message of the day has also been emphasised. As one German singer put it: "This is not just a concert, it's a political demonstration."
1701, Will Smith, on stage in Philadelphia
Today we are gathered here to make our declaration of
interdependence. We are all in this together.
1655, Ms Dynamite, speaking on BBC Two after performing
It's an unbelievable feeling. It goes so quickly though, it feels as though I wasn't even there. Everyone seemed to be having a great time.
1650, Tristana Moore, BBC News, Berlin
There are thousands of people here and the sun has just come out in the last hour. The whole road behind the Brandenburg gate leading up to the Victory column is absolutely full of people. The police were expecting 100,000, but now they estimate that 150,000 to 200,000 people have turned up.
1645, David Sillito, BBC News, backstage at Hyde Park
Chris Martin is having a chat with the Kofi Annan outside a portacabin with Sir Elton John, Richard Ashcroft and Annie Lennox all looking on. Around 300 other people are trying to master the art of staring at celebrities while looking as though they are far to cool to be bothered by all this.
1630, Mark Jeynes, via text
The inactivity and disinterest of the lucky few in the golden circle is a disgrace. The bands must be disappointed the real people are so far away.
1625, Angelina Jolie, at the Eden Project
I feel very connected to the people of Africa. I love African music. It's pretty much all I've got at home.
1622, Ben Kelly, via text from Egypt
Sitting at work in newspaper office in Cairo, watching Live 8 online. Wish I could be at one of the concerts!
1620, Nick Miles, BBC News, Johannesburg
At a square in the centre of the town there's a frantic rush to finalise the technical arrangements for the concert and the live link-up to the other concerts around the world.
1612, Ziad, via text
Watching on TV from Kuwait. Coldplay and Richard Ashcroft brought tears to my eyes!
1612, Sam, via text from Hyde Park
Get rid of the golden circle. It is destroying the vibe!
1600, Jamie, via text from Liverpool
I thought when Bill Gates introduced Dido, he was going to start singing Who Wants To Be A Millionaire? I was gutted when he didn't!
1552, Christine Jeavans, BBC News, Hyde Park screens
The T-shirt stall is doing a very brisk trade. But I have just seen a woman in an original Live Aid T-shirt with "I was there" on the back. Can't beat that!
1540, Ray Furlong, BBC News, Berlin
The fans here are actually crammed into a road that runs back to the Brandenburg Gate. It's wrapped in a white plastic band with the slogan "Your voice against poverty". But one performer said she was angry that the message of the day, help for Africa, was not getting through in this country.
1528, Jeremy Cooke, BBC News, Philadelphia
With still an hour and a half to go there are people as far as the eye can see, even though they haven't seen anything more than sound-checks. There is a real sense of expectation, and a festive atmosphere on the Fourth of July weekend.
1525, Barnaby Phillips, BBC News, Johannesburg
The crowd has built up slowly through the afternoon, alot of South Africans work on Saturday afternoon. There has been a good mix of bands from Africa, and many committed people in the audience. One banner reads "Bob Geldof for President". But there are also a lot of people enjoying a standard of line up rarely seen in Africa.
1521, Ian Youngs, BBC News, Hyde Park
One hour, four global superstars. Or should that be five now Pete Doherty has got some international exposure? I'm not convinced the other two billion watching would have been impressed. Elton and U2 are proving the oldies are still the best so far.
1519, Phillipa Thomas, BBC News, London
Looking around, there are very few black faces on the stage and there are very few black faces in the crowd. But the organisers have already said that's not the point, the point was to get the big commercial acts on stage and as many people as possible listening and watching as possible.
1457, Chris Martin, speaking on BBC Two after performing
It felt like a long, long way to the actual crowd. Who were all those people up the front?
1443, Christine Jeavans, BBC News, Hyde Park screens
TURN IT UP! Sound at big screen worryingly weedy in the first song. Fortunately they have sorted it now, the sun has come out and we feel part of it all.
1440, Dave from Exeter via text
At the back of Hyde Park. Great opening by U2. The sound is travelling slower than the big screen vision! Paid £2 for cup of coffee!
1432, Keane frontman Tim Rice-Oxley, on BBC Two
We're very excited but we're also very nervous. It's a bit surreal being backstage with a guy like Snoop Dogg.
1430, Sally in Philadelphia by text
Standing in line to get into the Philly concert. The rumour going around is Michael Jackson has been seen leaving the Neverland Ranch and is going to perform.
1418, Alasdair Sandford, BBC News, Versailles
With the chateau of Versailles providing a splendid backdrop, musicians have been performing sound-checks as the audience gathers. Up to 200,000 are expected to show up to see acts including the Senegalese singer Youssou N'Dour who performs after flying over from two performances in England. Organisers are hoping that Versailles' history is not lost on the world leaders they are calling on to bring historical change in Africa.
1415, Ian Youngs, BBC News, Hyde Park
It was 20 years ago today... well, almost. Bono summed up what the crowd was thinking when, after dueting with Sir Paul McCartney on Sgt Pepper, he asked: "Did that really happen?" It was a fitting start but U2's own anthems really got the crowd pumped up.
1401, Polly de Blank, BBC News, Eden Project
I am backstage. The concert has been going on for about an hour now. The old quarry where it is being held is resonating with the sound of Mariza singing her special Mozambiquan Fado.
1400, Matt Treacy, via text from Hyde Park
We are on parkland opposite the Dorchester. Traffic just doesn't stand a chance as the police can't keep people on the pavement. We just passed a sign saying we're 1.7km from the entrance!
1400, Toby Sealey, BBC News, Eden Project
This concert was born out of controversy at the lack of African artists were being included in an event designed to raise awareness of African poverty.
The music here will last until 11 tonight, with a much more intimate feel than the official concerts with just between 4,000 or 5,000 people expected. It may be the weather which is very rainy, but in the first hour or so very few people have turned up.
1400, Noodle, via text from Hyde Park
Sitting on the floor of Hyde Park, surrounded by standing people. quite menacing. U2 should hopefully start in 10 mins. Feels like 4 or 5pm.
1400, Ian Youngs, BBC News, Hyde Park
The crowds are still flowing in and Hyde Park is filling up. But even the first punters in have found they cannot get within about 100 metres from the stage. They are behind the golden circle - for competition winners, corporate ticketholders and media. And it still has a lot of empty space. Those in the front rows proper look a little aggrieved.