Which Rock Act Was NOT From Philadelphia?

Philadelphia has been the home base or launching pad for many a rock artist and Inside the Rock Era will do a feature on Philly soon.  


Which artist below is NOT from Philadelphia?



             O'Jays





                     Stylistics





        Danny and the Juniors





                  Boyz II Men





     Harold Melvin & the Blue Notes



    Gladys Knight and the Pips





                Hall & Oates






Click on the link below for the answer



Gladys Knight and the Pips are from Atlanta, Georgia.