How Aerosmith and Run DMC's "Walk This Way" Altered the Landscape of American Music
In the '80s, the destruction of two walls changed the course of human events. One was the Berlin Wall, which came down on November 9, 1989. The other was the wall separating Aerosmith from Run-DMC in the 1986 music video for "Walk This Way."
Source: mentalfloss.com