The O'Jays are an American R&B group (from Canton, Ohio, USA) formed in 1963 and one of the seminal Philly soul groups.
These are photos from concerts where The O'Jays played, so they may be of other bands that played the concert as well.
Earth Wind & Fire / Isley Brothrers / The O'Jays Aug 16, 1998 St. Louis, Missouri, United States Uploaded by Louise Halsey