Looked it up and saw them in 77. Before their pop phase. Didn't know much about them but college friends did. The song I remember is nothin but a house party.
The Show Stoppers
Was DJ'ing in college at the time. Always threw it into a set at the club I DJ'ed at in the late 80s as well. Great dancin' tune.
BTW The Show Stoppers were a Philly group.
Maybe J. Geils heard the song when he went to Philly from Boston to do a show.