For What It's Worth (often referred to by its opening line "Stop, Hey What's That Sound") is one of the most defining songs of the 1960s. Although widely interpreted as an anti-war song about the Vietnam War, Stephen Stills' direct inspiration came from the "Sunset Strip curfew riots" in Los Angeles in November 1966. Stills wrote the song in about 15 minutes, describing the tension and confrontation between the police and the counterculture youth protesting a curfew. With its haunting opening li