Black and white photograph of vocalist Rob Tyner and drummer Dennis Thompson of the band MC5 performing at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the negative.

Black and white photograph of the audience at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970 by Douglas R. Gilbert. In the foreground a man in a white tank top and cut-off shorts stands with his hands on his hips while…

Black and white photograph of bassist Michael Davis, guitarist Wayne Kramer and drummer Dennis Thompson of the band MC5 performing at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the…

Black and white photograph of an empty stage being set up between gigs at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. In the midground, a lone audience member with dark clothing and pale hair…

Black and white photograph of audience members lounging on blankets at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the negative.

Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. In the foreground a group of five dance in a circle with joined hands, while many others lounge…

Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. A man in an unbuttoned shirt and cut-off shorts is mid-air after being tossed up from a blanket held…

Black and white photograph of the band MC5 performing at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the negative.

Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. In the foreground, audience members raise their fists and a woman sits atop another's shoulders,…

Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. In the foreground audience members lounge and stand in small groups in the grass at Soldier field…

Black and white photograph of George Clinton and the band Funkadelic performing at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the negative.

Black and white photograph of George Clinton and the band Funkadelic performing at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. Scanned from the negative.