The third annual Country Throwdown tour begins Friday (May 18) in Gulfport, Miss. Gary Allan will headline every night of the tour. Special guests on select tour stops include Justin Moore (May 18-27), Corey Smith (May 19- 27 and July 8) and Rodney Atkins (June 1-July 1). The lineup also features newcomers Josh Thompson ("Comin' Around"), Sunny Sweeney ("From a Table Away"), Florida-Georgia Line, Eric Pasley and Maggie Rose. The 20-city tour will continue through July 8 at the Woods at Fontanel near Nashville.