In pictures: Washington benefit concert

Tens of thousands of music fans gathered at Washington's RFK Stadium on Sunday for a benefit concert, called United We Stand, in aid of the families of victims of the 11 September attacks in the US.

Steve Tyler of Aerosmith gets the fans at the stadium warmed up

P Diddy, who also appeared at the New York concert, was in patriotic mood and paid tribute to the "heroes" in the US

Fans were ecstatic to get tickets to the concert and showed off their national pride

Michael Jackson dropped into the concert via a crane, draped in the US national flag

Mariah Carey, recovering from recent illness, gave a typically powerful vocal performance

Heart throb boy band 'NSync danced up a storm on stage at the stadium

British singer Rod Stewart was on hand to lend his vocal support to the proceedings

Oscar-winning American actor Kevin Spacey is introduced to the crowd

Michael Jackson leads an all-star finale at the concert