Toby Keithhas rescheduled Thursday's (8/2) Army Concert Tour show at Sparta, WI's Fort McCoy for Aug. 30. Keith will be undergoing an outpatient procedure to remove his gallbladder, and Gretchen Wilson will fill in for him at Thursday's show. The Live In Overdrivetour resumes Aug. 3 at Detroit Lakes, MN's WE Fest!