Detroit is infamous for the 1967 riots. Another nearly broke out at Cobo Arena at a 1978 David Bowie concert. Hear how he stepped up to the mic and stopped it.
Streaming event's lineup includes Duran Duran, Nine Inch Nails, Peter Frampton, Def Leppard's Joe Elliott and a supergroup featuring members of Foo Fighters, Slipknot and Jane's Addiction.