FILE - This July 4, 2014 file photo shows Nicki Minaj performing during an Independence Day concert in Philadelphia. The mayor of Philadelphia is apologizing for the profanity used by rapper Nicki Minaj and comedian Marlon Wayans during a family-friendly July Fourth concert. Mayor Michael Nutter said Monday, July 14, 2014, that cursing hasn?t been problem at the show in recent years. He says performers are supposed to adhere to network TV standards. (AP Photo/Matt Rourke, File)