In the early 1980s hip hop's reach was limited, largely ignored by mainstream radio deejays and the rock-obsessed MTV network. But in 1986, the music world was irrevocably changed when Run-DMC covered Aerosmith's hit 'Walk This Way' in the first rock-hip hop collaboration. Geoff Edgers sets the scene and tracks the paths of the main artists - Steven Tyler, Joe Perry, Joseph 'Run' Simmons, and Darryl 'DMC' McDaniels - illustrating the long road to this revolutionary marriage of rock and hip hop. This music history is a must-read for fans of hip hop, rock, and everything in between.