First song played at Barack Obama's acceptance?

Question

Does anyone know the name of the music that was being played as Barack Obama first step onto the stage before the cheering crowd to make his acceptance speech?

Answer 1

Ain't No Stopping Us Now??

I think there were a few songs

Answer 2

I asked the same question if you find out please email the title to me .I just found it on frostwire its called city of blinding lights by U2.