Black Flag were the focal point of Los Angeles hardcore. Seemingly everyone on the local punk scene—plus out of towners like Washington DC's Henry Rollins—passed through guitarist and bandleader Greg Ginn's many lineups over the years. The Circle Jerks, D.O.A., Redd Kross, and Social Distortion were some of the many classic L.A. punk acts to share members with the band who started it all.