The Pop (not to be confused with The Pop! or Pop) was a power pop band from Madison, Wisconsin. They had a deliberately retro sound akin to merseybeat bands from the 60s-- complete with faux-English accents in some of their tunes.
These are photos from concerts where The Pop played, so they may be of other bands that played the concert as well.
The Inmates / Quincy / The Pop Dec 20, 1980 Cherry Hill, New Jersey, United States Uploaded by Zimtrim