How Hit Rock, R&B, and Pop Songs Get Made
In this July 13, 1985 file photo, singer Robert Plant, left, and guitarist Jimmy Page of the British rock band Led Zeppelin perform at the Live Aid concert at Philadelphia's J.F.K. Stadium.
( Rusty Kennedy / AP Photo )
( Rusty Kennedy / AP Photo )
Produced by John Asante
Hosted by Todd Zwillich
