Thousands of extra tickets for Live 8 London have been snapped up by music fans in less than two hours.
Some fans had been camping out for hours across the UK to get their hands on the extra 55,000 tickets that were available from 3pm on Wednesday.
But these new tickets won't let people get anywhere near the stage, instead they'll be watching on giant screens.
Organisers have told people not to try to come to the show if they don't have a ticket, because of the huge crowds.
Massive stars
Robert McDonald, 41, was at the head of one of the London lines, and had been there since arriving at 1pm on Tuesday.
 |
Live 8
|
He said "The whole thing's worth camping out for, the whole atmosphere. It's been pretty chilled out."
Stars taking part in the series of concerts include U2, Coldplay, Madonna, 50 Cent, Green Day and Joss Stone.
The concerts will raise awareness of the Make Poverty History campaign, which is trying to help Africa.
London, Philadelphia, Berlin, Paris and Rome will all play host to Live 8 concerts on 2 July, and there's one in Edinburgh on 6 July too.