100,000′s of fans are expected at Jay-Z’s annual “Made In America” Concert in Philidelphia, but with the announcement that his wife, pop superstar, Beyonce will be hitting the stage that numbers expected to quickly rise.  ”The performance is top secret but it will be filmed for Jay’s documentary about the event. It’s going to be epic.” an insider tells sources. Other artist already confirmed to perform are Drake, Skrillex, Afrojack and Run DMC.