According to HipHopDX, the lineup has been announced for this year’s Philly Fourth of July Jam, which is being hailed as the “largest free concert in America” with over 500,000 people attending last year’s event. Once again, The Roots will be headlining the evening with additional performances from Queen Latifah, Common, Darryl Hall and Joe Jonas (ewww). Things will be kicking off at noon on the Ben Franklin Parkway.