Hunter Hayes, 7 p.m. Aug. 30: Hunter Hayes was four-years-old when he played accordion with Hank Williams Jr. on a Nickelodeon TV show. "Hunter Hayes" (2011), the first album of Hayes, now 22, has sold more than 1.1 million copies. He became the youngest male to top the Billboard's Country Song chart with his single "Wanted." His second album is "Storyline" (2014). Martin Guitars, Nazareth, made Hayes a Brand Ambassador in 2012. The Swon Brothers, a duo that made it to NBC-TV show, "The Voice," Season Four finals, opens the show.