There is more than one artist/band named KGB.
These are photos from concerts where Kgb played, so they may be of other bands that played the concert as well.
Joe Cocker / Kgb Apr 30, 1976 Hempstead, New York, United States Uploaded by Zimtrim
Joe Cocker / Golden Earring / KGB Apr 26, 1976 Allentown, Pennsylvania, United States Uploaded by Zimtrim