WHAT: Nike Basketball presents 107.5 WGCI 13th Annual Big Jam on Friday, November 16, 2012 at Allstate Arena. WGCI will bring a star-studded line up to their listeners and the Chicagoland area. This year’s concert will feature performances by Rick Ross, Wale, Fat Joe, Keyshia Cole, Kelly Rowland, Future and a special cameo appearance by Usher.WHEN: Concert will be held Friday, November 16, 2012 Doors Open: 6:00PMWHERE: Allstate Arena6920 North Manheim RoadRosemont, IL 60018