Philly Rappers:

MAINSTREAM:
Freeway (ROC)
Cassidy (RuffRyders)
Young Gunz (ROC)
Beanie Sigel(ROC)
Peedi Crakk(ROC)
Oskeeno and Sparks(ROC)
Elliot Ness(Da Band)
Skooly D(OldSchool)
Fresh Prince (Will Smith)

UNDERGROUND:
Reign Man(Battle in Mtv Freestyle thing, tried out for Da Band)

^^ im sure theres more, ill have to go do sum research but so far,philly has the most rappers.....