Rising country music star Cassadee Pope will headline this year’s Warren County A&L Fair as the top musical act. She’s set to perform Thursday night, Sept. 17, beginning at 7 p.m.“We’re anticipating a big crowd,” said fair president Kenneth Medlen. “Several people on our fair board have heard her sing and say she’s very good.”Pope grabbed the national spotlight when she won on season three of the TV show “The Voice.”