2Pac , The Notorious B.I.G. , J Dilla , Bone Thugs-n-Harmony , Ice Cube and Snoop Dogg among others. THE O'JAYS: The O'Jays are a Philadelphia soul group, originally consisting of Walter Williams (born August 25 , 1942 ), Bill Isles, Jerome Pierson, Bobby Massey, William Powell ( January 20 , 1942